From
http://lnag.org/ :
On St. Patrick’s Day 2010, Irish language speakers and learners will take part in the global online celebration #lnag10 :: Lá na Gaeilge ar Líne for Seachtain na Gaeilge.
If you’re on Facebook, Twitter, blogs, or online fora, if you write for an online newspaper, or even if you regularly comment on online material, try to use a little Irish language on that day, and include the hashtag #lnag10 so we can see how we get on.
Last year we focussed mainly on Twitter, and we had a truly beautiful event where we watched #lnag dawn in Australia, make its way via India across Europe, and into North America. We’re hoping with your help to make #lnag10 bigger, better, and even more craic.
Also for your reading pleasure, from last year:
http://www.mulley.net/2009/03/13/if-a-yank-can-do-it-get-your-irish-out-for-la-n a-gaeilge/