Yesterday a couple of people on the Google Search Quality Team, Juliane Stiller and Kaspar Szymanski, wrote a blog post titled, Dynamic URLs vs. static URLs. In it they address several concepts people in the webmastering community have about whether or not Google has trouble with dynamic urls, and whether or not webmasters should rewrite into what is commonly referred to as “search engine friendly” formats.
Their advice, clearly stated in the post, is