How many different ad companies do you use? (need suggestions)

I am currently using 2 different ad companies (adsense and adbrite) on my forums. My alexa rank is around 400 000 right now...

What do you suggest I should do about ads on my forums? How many different companies do you use? and which companies/types of ads are best for my ranking?

 

Well I don't know what companies are best for ranking but I currently use around 10 ad companies. As you can see I don't like to limit ad companies by putting all my eggs in one basket so I try really all of them on different sites I own.

I use Google Adsense, Adbrite, NeverBlue, MarketLeverage, WidgetBucks but to name a few.

 

oh is this for just one site? or multiple sites? but since my forums are limited for space i am currently only using 2

 

wow that many?

 

I use Zango and pay ads

 

you might want to try some affiliate offers. Often times they can explode your revenue.

 

Hmm,try optimizing adsense ads.

 

"I try really all of them on different sites I own."

I don't think I could use that many on one web page could I?

Definitely finding affiliate offers like just email submits on a forum should be profitable. Make sure they are seen and are very attractive to the users of the forum.

 

What are you forums about?

I would find advertisers that relate to the niche.