[megri]

Static vs. Dynamic urls: does PageRank flow the same to both? What pitfalls should I avoid with dynamic urls?
- Can Sitemaps alert webmasters when their site has been hacked?
- Can I do geotargetting within Google’s Quality Guidelines?

- Merging acquired domains with 301s?
- How to create a site architecture with themes and keywords?
- My urls have too many parameters–can I serve up static HTML to Googlebot instead?
- How to do split A/B testing?

You can get answer from Matt
http://www.mattcutts.com/blog/more-s...wers-on-video/