Since my last question received so many wonderful responses I thought I'd try another!

I want to do a small advertising campaign across a mix of blogs so I'm looking for ideas of blogs you know that may fit the bill. Obviously the blog must have advertising slots already. It should be IT or business related. It should have decent traffic, but it doesn't have to be huge. I think a good qualifier for this is that most of the posts have at least a few comments. I am not interested in using adsense to do this via the 'place an ad on this site' link. I tried a few of those and they just don't work. Ideally I'd like to have the ad directly placed or via a better network than adsense. Image and/or text ads are fine.

So if you know of any blogs where you think a HelpSpot ad would make sense and the owner would be interested post a link. Thanks!