Whilst Invisible Children is still the number one charity on Facebook with 3,199,279 likes the Wounded Warrior Project is the fastest growing non-profit on the social media network...

With others such as UNICEF the children's charity also rapidly building up their Facebook support...

While Invisible Children responsible for the Kony 2012 campaign is still the most followed non-profit on Facebook, the charity has seen its rate of new likes go into slight decline, whilst several non-profits are catching up at an exponential rate.

Wounded Warrior Project has 798,208 likes but is growing at the biggest rate of any charity on Facebook currently...

The non-profit is growing at plus 5,061 new likes a day.

The Wounded Warrior Project assists US military service members to recover from their service-connected wounds, injuries, or illnesses...as well as providing a range of other services...

The charity offers free programmes for health rehabilitation as well as education and employment services for injured service persons.

At this rate of social media growth it will be at the million supporters rate on Facebook in less than two months...

Meanwhile UNICEF is the fastest growing international charity on Facebook right now.

The charity has 1,863,502 likes making it the second most popular charity on Facebook after Invisible Children but its daily growth is plus 1,995 new likes a day, which is pretty astonishing...

The charity currently makes good use of social media using it to promote its SahelNow campaign as well as its ongoing global campaigns to reduce child poverty, and especially child mortality in the developing world.

Other charities fast growing include The Humane Society of the United States - Farm Animal Protection Campaign, 1987 daily new likes; St Jude Children's Research Hospital, 1543 daily new likes; the charity: One, 1162 daily new likes; and the Compassion Over Killing animal welfare charity with 1135 new likes daily...

Other fast growing non-profit Facebook sites are American Cancer Society Relay For Life, with plus 969 new likes daily; the Humane Society of the United States, plus 921 new daily likes; World Vision USA, plus 756 daily new likes; PETA, plus 637 daily new likes and Greenpeace International with plus 446 new likes.

The current picture reflects how children’s charities and international development/health charities continue to be the most popular charities for donors; but also how many animal welfare and environment charities continue to be especially successful at building up followers via social media.

And also the fast growth of some of these charities shows how the nature of the social media networking phenomenon can really snowball so rapidly and easily, in terms of attracting people to a cause...

One good tip for charities operating on Facebook is to give quality information and clear calls for action...

Don't be shy to ask your readers to donate, support or sign or spread awareness...and link back to your main website or campaign.

Point to supplementary info that shows what you are all about...

Facebook and other forms of social media have long surpassed the days when they were a niche part of marketing for charities...

They are absolutely vital, and used intelligently along with other online platforms, they can help create massive social impact as these leading charities clearly illustrate...