Two things popped up on my laptop this morning, both of which will be of interest to any nonprofit looking to maximize its website usefullness.
First, is SEMcares, and organization made up of Search Engine Marketing professionals who help nonprofits pro bono (or at deep discounts) get more from their website. If broad exposure is important to your organization, check them out.
Second is Google Grants. Anyone who cruises the web knows about Google Ads, those little boxes that show up to the right of a search query. I use them myself, and pay only when someone clicks on the box and goes to my website, or to this blog. It's called Google AdWords.
Google Grants allows you to do use AdWords for free.... if you qualify and apply. Thus, you could have a broader reach, and for free! Here's a hint as well: setting up AdWords is a breeze.
Check both of these resources out!