I'm considering a complete re-structure of my site as I'm not satisfied with how it flows.
At the same time, I also want to add a keyword to the URL for SEO purposes (it doesn't exist in the domain) - I wasn't convinced the keywords in the URL are required for SEO, but based on what I see in Google/Bing/Yahoo - it does seem to be a major factor.
I'll also be moving from a directory url structure to .html
Any tips on doing this? What should I expect to see in terms of traffic in the short/long term?