One of my food related sites was recently reduced to a $0.03 cpc when it usually $0.15 so I did some investigating. I visited the urls that were advertising on the site to check them out. Turns out there was 3 mfa spammy sites flooding my site with ads. I blocked the urls and the next day everything was back to normal. One of the sites was www.fantastic-7.com, mfa trash. I don't know if this will apply to your situation but it is worth checking out.
Some interesting values on amounts here. For reference (and maybe some gloating) I'm getting an average of 0.417$ per click at the moment - this is through technology and car related sites.
well Matt if you get more than 3 - 5000 clicks a month the first round and the next round abd the round thereafter is on you nice going
Lol I wish! Try 10% of that number of clicks! Still - only been going for 6 months so plenty of time to get up to 5K clicks a month