ValueClick(VCLK) fell approx 16% to $26.71.
I am a fan of ValueClick and if you are an investor it could be a good time to get in on ValueClick as CJ- Commission Junction, one of the companies owned by ValueClick is poised to grow its advertiser base from the current 3,205 as a result of Google ending their Google Affiliate Network which currently has hundreds of advertisers not currently on CJ.
Overall online advertising is poised to expand, although it will be more competitive.
ValueClick could be a good buy and a stock worth looking further into.

Fool.com has a good analysis here of recent results.