I tend to like logos with an icon/graphic on the left hand side of the text. Something simple that looks really good.
The two main concepts for our service are money and content. Money probably can't be represented well without being cheesy, but if you think you can pull it off, go for it. Probably better to have something representing content in some way, or content monetization, if that's possible to portray. But try anything you want, really. We might be surprised.
Otherwise, I'd be happy with just the text "contenture.com", but souped up and looking damn good, optionially with some subtle graphic making it more exciting.
We're looking for "web 2.0" style logos. Search Google for countless examples. An example of a logo I like is the 99designs logo. The colors, the fonts, the layout - everything. I'm not asking you replicate this logo, but I do think highly of it.
Final art should be in a Photoshop readable vector art format for easy resizing.