Google’s Matt Cutts posted a recent video answering a question about the position of the keywords in the URL.
The question asked, does the order of the words in the URL make an impact on one’s ranking at Google? Cutts said one should not obsess about the order of the words but he said keywords in the URL “does help a little bit.”
Does this mean you should go back to your existing sites and change URLs without keywords to have keywords in them? Cutts says, “If you’ve got an existing solution that works for you, it’s not really worth going back to change your urls. It may worth considering when you’re doing a new site.” Should new sites have keywords in the URL. He also indicates, “It makes sense if a) it’s easy for you to do in your content management system, and b) the keywords are useful and descriptive-definitely don’t overdo it.”

Here is the video, it is worth watching: