I have an existing web site about widgets (monetized w/ Adsense & affiliate). This site is doing ok and has "potential" to be a good long-term site...so, it's not a throw-away domain for me. Anyway, I want to start a blog that is also about these "widgets." Should I start the blog on my existing domain or put it on a completely separate domain...and link to my first web site organically (along w/ other industry-relevant sites)? My reason for creating the blog is to get some traffic/seo benefit, but also to add an easy outlet for posting photos, making quick rants, and sharing info about new products or news. Any advice on the best method for driving more traffic (to both sites) in the long run? Thanks.