TGP traffic sucks on it's own. The people who go to them generally just want free porn, and there's so much of it, that they generally don't even click on banners.

With free sites, if I get 1000 unique visitors, I can get as many as 3-400 unique visitors to my sponsor's sites. With TGPs, if I get 5000 unique visitors, I'll get maybe 200 unique visitors over to my sponsor's sites, and although the conversions are comparable, the rebills are a whole lot smaller. So it's a drain on bandwidth if you're just using it to get people to sponsor sites.

However, if you're not using them to send on to sponsors so much as direct them to your hub or your link list or somthing, the traffic becomes a comodity that you can trade, which is always good. So although I wouldn't stay away from them period, I'd be mindful of what I want to do with the viewers for the 25 seconds that I have them.