Since 2006 I’ve been participating in DonorsChoose (thanks to timely reminders from Janet Stemwedel whenever life got too busy for me to keep track of anything). So I finally set up a page where you can donate to various life science related projects, with a bias toward genetics. Of course you don’t have to donate to just the projects that I selected. And if DonorsChoose is not to your taste, but you have funds you’d like to allocate to charity, please see the GiveWell recommendations.
Also check out the Leaderboard for science blogs.