Use the “inanchor:†and “allinanchor:†operators to see which of your competitors have obtained keyword rich links to their site. This will help you analyse their link building effectiveness on keywords you target or should be targeting.
Example: inachor:"product keyphrase here" would return results with “product keyphrase here†in the link anchor text
To prevent yourself from being on a Twitter list you must block the twitter user that created of the list.
Google now shows you personalized search results all the time, even when you are not logged in. Results are personalized based upon your last 180 days of Google activity as tracked by the linked cookie in your browser.
To turn off personalized search you can easily appending “&pws=0†to the end of your Google SERP (search engine results page) URL in the address bar of your web browser. For example: http://www.google.com/search?q=pizza&pws=0