Google Webmaster Help – Will I be penalized if my URLs all have the same priority
If you want to understand about XML sitemaps then the best person to learn from is Matt Cutts. Matt is Head of Google’s Webspam Team and in this video he explains about the use of priority in your XML sitemaps.
Should I tweak my titles and descriptions to improve my CTR?
If you listen to what Matt has said here you can help to optimise your website yourself.
This page was Google Webmaster Help – Will I be penalized if my URLs all have the same priority
