Brainstorming for Bloggers - Idea Scouting

One reason I'm rarely at a loss for something to blog about is that I'm always scouting for ideas.  Sometimes I'll be asked a question that I've answered for someone else in the past, like "What do you think about X?"  When I get home that night, it might just inspire me to write down everything I know about that subject in a blog post.  Not only does this give me some interesting (hopefully) material, it can also help me to flesh out my thoughts on a particular subject and respond even more authoritatively the next time someone asks (or I can just refer them to the blog and be done with it).