With the release of new Chrome extension Personal Blocklist (by Google) you can now block websites from search results with a new experimental Google Chrome extension that attempts to find and block the content farm websites.
The personal blocklist extension will transmit to Google the patterns that you choose to block. When you choose to block or unblock a pattern, the extension will also transmit to Google the URL of the web page on which the blocked or unblocked search results are displayed.
If installed, the extension also sends blocked site information to Google, and we will study the resulting feedback and explore using it as a potential ranking signal for our search results.
When you block a site with the extension, you won’t see results from that domain again in your Google search results. You can always revoke a blocked site at the bottom of the search results, so it’s easy to undo blocks.
This Google Chrome extension is centered around suppressing the content farms, websites that create low-quality content that rely on search for traffic.
You can download and try new extension from here.