The Irish Gaelic newspaper Nuacht24 is based in Belfast. It has an online presence with news articles, videos and various resources updated regularly. Another newspaper, Foinse, closed down in 2006 but is back in print with a website scheduled for 2011. A monthly Gaelic newspaper out of Dublin, Saol, is in print only.
Find articles for your own practice or for teaching through internet sites. The website for the non-profit Daltai na Gaeilge lists an entire page of articles in Irish. Some are translated side-by-side into English. The BBC online portal to Irish is a great resource for lessons, including the interactive game Colin and Cumberland, as well as an archive of radio programs in Irish called BLAS.
Workshops and classes are held throughout the United States and Canada. Some groups, such as the North American Gaeltacht, meet for an immersion camp-style workshop that may last a week or two. Others classes may meet in a local library or university meeting hall. Classes offered are not the same as a credited class taken at a university level. Irish language classes in your area may be listed through community pages and your local universities and colleges.
Plenty of best-selling books, such as the Harry Potter series, have been translated into Irish Gaelic. Litrioch.com is a supplier of print books and eBooks in Irish. A large bookstore in your city may also carry a supply of fiction and non-fiction books in its Irish language section.