There are a few reasons why starting a blog on OmniNerd would have advantages over one hosted elsewhere:

• Better visibility – OmniNerd.com has a reasonably high Google PageRank – as do many of the articles. This means stuff on OmniNerd will show up higher in search engine results. For example, do a search for "underground sprinkler system; and you’ll see an article I wrote on the topic is on the front page. Search for "c++ fixed width; and you’ll see another OmniNerd article as the top listing. I could list many more, but my point here is I seriously doubt this could have happened if I would have posted the content on Blogger or WordPress. Additionally, any blog entries that are accepted to the "coffee shop" and are posted to the front page will be especially visible.
• Expanded audience – Since OmniNerd already has a decent readership, you’ll likely get more feedback than if you started from scratch elsewhere. In addition to those to whom you publicize, you’ll get those to whom OmniNerd publicizes. This means more points of view, more comments, (probably) better discussion, etc.
• Statistics – OmniNerd tracks various data points on its content, including hits and votes. Some of these are available on your user page now, but even more will be later. If you like following this kind of stuff (like I do), then this is a big advantage.
• Access to the coders/owners – On OmniNerd you’re dealing with original code and can contact the coders to give feedback. This means if you’re a consistent blogger on OmniNerd and have a feature you’d really like, there’s a chance a simple email could get it for you.
• The nerd factor – Face it; nerds are just better than non-nerds. Why blog somewhere non-nerdy when you can blog somewhere nerdy?
  So, go ahead and start your O-Nerd blog. Free your inner-nerd.