I got banned from Google awhile back over a stupid issue, and AdBrite just has not been cutting it for me. I'm getting about 2000+ visitors a day and AdBrite just does not display any ads related to my tech community. I used to make a good $5 a day and now I'm lucky if I make $0.05 a day from AdBrite. AdBrite looks great if I was a bigger site.
AdSense and AdBrite are so far the best ppc (pay per click) ad networks in my opinion. Here are some other ppc ad network that I can recommend to you; Chitka (alright rates) and BidVertiser (good rates, doesn't count all clicks sometimes). *Ppc (pay per click) - you earn revenue when someone click on the ads. If you have many visitors to your site I recommend that you use cpm ad network, you will earn more with them than with ppc. My recommendations for cpm are; TribalFusion (very high rates, hard to get approved thought), Snoork Ads - Check my signature (Very good rates so far). *Cpm (cost per thousand impressions) - you earn revenue for displaying ads on your site, no need to click on them.
You could stick some ads on the bottom of your site. www.claxon.com for CPM but not sure who's good at the moment with PPC. How many clicks you generate per day?
Adbrite is of no use for some sites, they display irrelevant content for some keywords, using adbrite needs a big site and comparatively they are paying less than Google adsense