A question I had a while back was about wether or not the content on site A could impact the rankings on site B (both being your sites) and I suggested that Google may be profiling sites at the webmaster level, gathering information about the author and using it to rank pages etc. They haven't admitted doing so but explicitly retain the right and rarely give warning so..
In Google webmaster tools, under the LABS link there is an author stats link leading to a page that displays aggregate data from any site/page you're a confirmed author of. To me this suggests that Google is indeed looking at all of a webmasters sites combined, has anyone gathered evidence that Google adjusts rankings based on author?
It wouldn't be too difficult to set up a test - if your portfolio is white hat and ranking well what happens when you purchase a political site? adult site? opinionated site not appreciated by Google?
Do you think Google should be judging all your books based on you as an author instead of individually on their own merit?
[edited by: Robert_Charlton at 7:27 am (utc) on Jan 20, 2012]
[edit reason] fixed typo [/edit]