$300m has been raised through Facebook Birthday Fundraisers in one year

"Today we’re sharing some major milestones for the first year of birthday fundraisers on Facebook and announcing plans to help people more easily find nonprofits to support in the year ahead.
People raised more than $300 million for the causes they care about using birthday fundraisers.
St. Jude, Alzheimer’s Association, the American Cancer Society, Share Our Strength – No Kid Hungry, and the ASPCA are among the top beneficiaries of birthday fundraisers."
Source:  Facebook's newsroom, 15th August 2018

The Gates Foundation donated $10 per RT of their Tweet for Red Nose Day

Don't have a red nose? That's ok! For every RT we'll donate $10 toward ending child poverty. #RedNose4Kids pic.twitter.com/pFgi2CrSOx

— Gates Foundation (@gatesfoundation) May 19, 2016

Note - it was to a limit of $1m, and they added an extra $500k

Wow! Thanks for your support! We hit our goal so quickly, we've decided to add an additional $500K (for a total of $1.5mill) to this effort.

— Gates Foundation (@gatesfoundation) May 20, 2016

More than 2.4 million Ice Bucket Challenge related videos have been posted on Facebook

"There have been in excess of 2.4 million ice bucket-related videos posted on Facebook, and 28 million people have uploaded, commented on or liked ice bucket-related posts.
On image sharing website Instagram there have been 3.7 million videos uploaded with the hashtags #ALSicebucketchallenge and #icebucketchallenge. Justin Bieber's has been the most popular - with about one million "likes".
The stunt is typically intended to raise money and awareness for the Amyotrophic Lateral Sclerosis (ALS) Association. Its British equivalent, the Motor Neurone Disease Association, has also benefited.
From 29 July to 28 August this year ALS received $98.2m - compared with $2.7m donated during the same period last year.
Pre-ice bucket, the MND Association would receive on average £200,000 a week in donations. From 22 to 29 August, it received £2.7m.
In the UK, other charities have benefited with Macmillan Cancer Support raising £3m from challenges. Water Aid has seen a spike in donations, including £47,000 in one day - 50% higher than it ever received in a single day before. The money came in part from people bemoaning the water wasted in the challenges."

Source:  BBC News, 2nd September 2014

Note - The full post looks at how interest grew and was shared

The ALS Ice Bucket Challenge has raised $15.6m in donations

!As of Monday, August 18, The ALS Association has received $15.6 million in donations compared to $1.8 million during the same time period last year (July 29 to August 18). These donations have come from existing donors and 307,598 new donors to The Association.
The ALS Association’s mission includes providing care services to assist people with ALS and their families through a network of chapters working in communities across the nation and a global research program focused on the discovery of treatments and eventually a cure for the disease. In addition, The Association’s public policy efforts empower people to advance public policies in our nation’s Capital that respond to the needs of people with ALS."

Source:  Press release from ALSA, 18th August 2014

Samsung donated $1 to charity per re-tweet of Ellen's Oscars Selfie

"While we were a sponsor of the Oscars and had an integration with ABC, we were delighted to see Ellen organically incorporate the device into the selfie moment that had everyone talking. A great surprise for everyone, she captured something that nobody expected. In honor of this epic moment and of course, the incredible response of nearly 3 million re tweets, we wanted to make a donation to Ellen’s charities of choice: St Jude’s and the Humane Society. Samsung will donate 1.5 million dollars to each charity."
Source:  TechCrunch, 4th March 2014

Charity: water has raised $100 million in 7 years

"In just seven years, Harrison’s organization claims to have raised roughly $100 million — $33 million in 2012 alone, up from $27 million the year before and $16 million the year before that. Today it is the largest nonprofit in the United States focused on water, with revenues that are four times as great as those of Water.org, the group co-founded by Matt Damon. Charity: water doesn’t drill wells or buy water filters but acts as a fund-raising clearinghouse for locally based charities, which it subcontracts to do the actual work. It markets its partners, mostly using its Web site and social media. “You could almost imagine us a Kayak.com or an Expedia,” Harrison says. But charity: water promises to do more than a mere online travel agent does; it claims to verify that the wells its donors buy are actually completed in a timely fashion. “We create an experience,” he says, “a pure way to give.”"

Source:  New York Times, 8th August 2013

Kiva has made loans to more than 1 million people

"Kiva, the world's largest crowdfunding platform for social good, announced today that it has reached over 1 million people in more than 65 countries through $400 million in microloans. This is a tremendous milestone for the nonprofit organization, which was founded in 2005 to connect people through lending to alleviate poverty and expand economic opportunity.
"This has been an amazing journey over the last seven years," said Matt Flannery, Kiva Co-founder and CEO. "I want to thank the one million borrowers who have proven to the world that it was worth taking a chance on them. You have made Kiva possible."
In their first year, Kiva lenders crowdfunded almost $500,000 in loans. Today, Kiva's community of 900,000 lenders crowdfund more than $1.5 million in loans per week. These small dollar individual loans have helped more than 1 million low-income borrowers start and grow businesses, go to school, improve their homes, buy clean energy products, and more. Through Kiva, anyone with an internet connection can make a loan as little as $25 to the borrower of their choice on Kiva.org. And with Kiva's repayment rate of 98.9%, lenders are able to relend their money again and again, or withdraw it from the system."

Source:  Press release from Kiva, 18th March 2013

£15.1m was raised for Comic Relief 2011 through text messaging

"Mobile phone users could donate to Comic Relief by pledging £1, £5 or £10 by texting "Yes" to number 70010, organised by Mobile Interactive Group (MIG). Mobile operators waived their usual fees.
Mobile donations accounted for £15.1m of the £74.4m raised so far.
Radha Chakraborty, operations director for Comic Relief, said: "SMS donations provide a valuable channel for us and appeal to a wide audience."
Earlier that week, those following the trek of a clutch of celebrities across the Kaisut Desert in northern Kenya could donate £1 by texting "DESERT" to 70011, while a third number was set up for viewers to donate £5 for the airing of a documentary about the trek on 18 March."
Source:  Brand Republic, 3rd May 2011

Greenpeace received over 80,000 comments to a Facebook post in 24 hours

Click to enlarge

Source:  Greenpeace, 13th April 2011

It took six days for twitter followers of celebrities like Justin Timberlake & Lady Gaga to raise $1m for Africa

Tweet on 1st December:

Tweet on 6th December:

Full information:

Update - The gossip site Popbitch has a different take on the story:
"Neatly proving just how ineffective social media actually is, 18 celebrities (and Jay Sean) sacrificed their "digital lives" for charity last week, vowing to stop updating their Twitter and Facebook feeds. Social network silence from Lady Gaga, Alicia Keys, Justin Timberlake and others until their fans donated a million dollars to the Keep A Child Alive campaign to help fight AIDS.
With six days gone, donations were still under $300k. The celebs got restive - Usher just plain gave up and started tweeting - so a billionaire patsy, and longtime AIDS funder Stewart Bahr, was drafted in to pay it off.
It would have cost the celebs' 35 million combined followers less than 3 cents each to buy back their lives and get them tweeting again, so it appears their fans are staunchly pro-AIDS, or no-one really cared very much about what they had to say in the first place.
FYI Serena Williams inadvertently summed up the campaign's biggest problem in her last tweet and testament: "[It means] no more news about me winning more Grand Slams, selling books, winning gold medals, owning AMAZING football teams or pioneering fashion until we raise some serious cash". Is it any wonder people wanted her silenced? http://bit.ly/huo25w  "
Source:  Popbitch newsletter, Issue 526, 9th December 2010

28% of Europeans who gave money to the Haiti disaster appeal gave through mobile phones

"Following the Haitian Earthquake, it was widely reported that Mobile had played an important role in raising the required money for the relief efforts. This MMA study puts some solid numbers behind these reports, showing that in Europe that 21.4% of donors made their pledges via SMS and 7% by visiting a charitable website from their mobile device.
This means that a total of 28.4% of those who gave money to the Haitian appeal did so via their mobile device, which shows how important a medium mobile has become in order to allow people to help victims and charities.
The figures vary slightly from country to country, with French people emerging as the most likely to use their mobile device for charitable donations with 30% of all donors choosing to do so via SMS. Germany came second with 26% of all donors using SMS as their medium of choice to donate to the appeal. "
Source: Data from MMA, reported by Mobi AD News, 3rd May 2010

Players of Zynga's social games on Facebook have donated more than $1.5m to Haiti disaster relief in 5 days

"Zynga’s gamers have donated more than $1.5 million in the past five days for Haitian earthquake relief. They did so by making donations directly from within Zynga’s top four games on Facebook.
Zynga, the biggest maker of social games on Facebook, said that some 300,000 Zynga game players from 47 countries have purchased virtual goods inside the games, with all of the proceeds for the specific game item sales going to the U.N.’s World Food Programme. FarmVille users, including me, donated a total of $1 million. Users in FishVille, Mafia Wars, and Zynga Poker were also able to donate money. Donations were also promoted via all of Zynga’s games, which reach 227 million monthly active users."
Source: Venturebeat, 19th January 2010

The 'Causes' app on Facebook has raised $10m in two years

"Today, Causes broke $10,000,000 raised through the application in just over two years. Half of this, $5,000,000, was donated in just the past 6 months. It is through the hard work of activists and nonprofits on Causes that we have been able to reach this milestone. We are constantly awestruck by the drive, commitment and passion poured into a cause, petition or birthday wish. In an effort to share what $10,000,000 raised means, we thought we’d show how that breaks down and how you have all contributed to this success.
Here’s how it all breaks down:
$10,000,000 donated
$5,000,000 donated so far in 2009
$25 median donation
192,000 unique donors
26,000 causes have received donations
$1.4 million raised through Birthday Wish feature"
Source: Joe Green on the CausesExchange blog, 10th July 2009