I hope that every reader's nonprofit accepts donations online, either through credit card or PayPal, or both. If you aren't, you are almost certainly turning away funds, especially from anyone who regularly uses the net to pay bills or make purchases. And, of course, just about anyone under 30.
That's the first level. Here are some resources for you.
An Article from the Nonprofit FAQ
Another article on online fundraising in general
Then you move to the second level-active fundraising online. While there are lots of people to help you, I like the materials from Groundspring.org. They offer classes, and other support in this growing area. Check them out and think through your tech improvement plan to include using the net as a fundraising tool.