ProBlogger posted about making a linking post. In his list of styles of link posts was One Question Interviews.
One Question Interviews – this one takes a little co-ordination and advanced planning but is when you shoot a question out to another blogger (or bloggers) to get their perspective on a topic relevant to your readers. I find these most effective when you email the same question to 5 or so other bloggers in your niche and then compile all the answers into one post side by side so your readers can see different perspectives.
I really like this idea. You can come up with a question, not too complex, and get a lot of feedback and link to each person. If you work on getting a wide variety of blogging types you could end up creating a ton of new ideas.