I'm a founder member of the "Strengthen the Good" Network of Bloggers, as mentioned in the New York Times.
This month's micro-charity - one where even a single dollar can make a significant difference - is helping to build an English-Language Library for Teenagers in Bratislava, Slovakia. the School is the Bilingválne gymnázium C. S. Lewisa / C.S.Lewis Bilingual High School.
What they want is books. A List and postage instructions are available on the Strengthen The Good site. But a buck or two goes a long way in Slovakia, so if it's not convenient to post books, then you can donate cash via PayPal, Credit card or cheque instead. And if you can't do that, just let people in your office or workplace know. Maybe they have a duplicate copy of "Catcher in the Rye" (for example) that's just taking up space.
Oh yes, "Strengthen The Good" is now a US 503/c Non-Profit Organisation, which means donations are tax-deductible (if you live in the US). By getting rid of some old books you don't read any more, you may actually save more money than you spend on postage.
No 3 Garden of Angels
No 2 Brent Woodall Foundation for Exceptional Children
No 1 Gulf Coast Community Foundation of Venice Hurricane Charley Disaster Relief
No 0 Announcement - but it was really the Tom Family that started this whole thing.