I just started using Yahoo Answers again. This is a great source for blogging content. Just search through the questions, find something that you might be able to help with and write. What I really like about it is that it's a step beyond search; i.e. most people don't ask, "What's CPC?" You can find that on Google. The questions are much more difficult than that and thus a foundation for great content.

Here's an answer I just gave to an important question while I was riding the Acela back to New York.

Question: What is best way to keep long term clients and customers?

My Answer: I think there are three key ways to address this challenge:

Find a way to make leaving difficult for your clients. That is, create substantial "switching costs". And I don't mean cancellation fees, that'll just cause ill will. Instead find ways to make your product or service more valuable by becoming more intimate with and integrated into what matters to the client.
Innovate, innovate, innovate. Watch your competitors and run as fast as you can to avoid becoming a commodity. When your clients are only talking about price you know you're running much too slow.
Make big promises and over deliver.