We all know that online donations are growing, and I have long recommended to all of my clients to have the ability to accept donations both by credit card and PayPal. Of course, there are numerous providers who process donations, and lots of software that tracks it. So where to start.
As always, start with TechSoup. Their current newsletter highlights a set of articles on selecting a good online donation tool. http://www.techsoup.org/howto/articles/funding/page4172.cfm will get you there.
Take a look, and make sure that you consider taking donations online, and if you do, in upgrading your donation interface. I saw one last night that only let me give $10, $25, or $50. Really. No more, no different.....silly.