Out of the many SEO tools, Google Webmaster Tools is one of the most useful SEO tools that provide data and configuration control for your site in Google. If you’re doing SEO and you don’t have GWT, then you have nothing.
I guess we’re all just too accustomed to unprincipled corporate greed, because this myth has remained for years.
“Does participating in Google’s AdWords help your non-Google AdWords rankings?”
The inference to that is the question:
“Does Google punish sites that don’t use Google AdWords ads (Google’s product) by lowering their rankings, thus encouraging engagement in AdWords where Google makes money?”
Google published a set of best practices for XML sitemaps and RSS/Atom feeds on its Webmaster Central Blog this week, explaining which fields in sitemaps are important, when to use XML sitemaps and RSS/Atom feeds, and how to optimize them for Google.