you can go for adbrite but ave cpc is too low compared to adsense. Other Networds are TribalFusion clicksor doubleclick (now part of google)
I wouldn't reccommend bidvertiser because the ads that appear on your site tend to be irrelevant and they pay very little.
CJ can work well if you do it selectively and pick the right product. CJ, however, is an affilate program based on action.
Yes and they don't pay you and deduct money when your not checking your account. My revenue randomly went from $10 too $2 over night. Trust me its a scam. Everyone on this forum thinks the same.