Without a doubt, searching for a nonprofit job is a lot simpler than it was before the advent of the Internet. Now that we have access to nonprofit job boards, we can find the latest available positions with just the click of a mouse. However, this new technology doesn't mean that we should abandon traditional job hunting methods like networking.
Job networking is one of the most important tools in your arsenal. Without it, you will not have access to contacts in the nonprofit sector; and believe me, knowing people at jobs you want to apply to is still as key as it was before the Internet. Of course, the Internet has made networking for jobs easier, as well. If you haven't already, you should create a profile on LinkedIn. Essentially, it is Facebook for job seekers. By using it, you can instantly see if you have any connections at a job you are applying. Still, attending job networking events and career fairs is still something you should consider, as conversing face-to-face is more helpful than having e-mail conversations, as they tend to be less fluid.
So while browsing through job boards and sites over the net, make sure you put in the proper networking time.