If you want to improve Google’s results and report spammy web pages, there’s a Chrome extension for you.Google Webspam Report adds a link next to each Google search result and automatically fills the spam report form with information like the URL of the page and your query.
You can also use the button from Chrome’s toolbar to report pages. The most interesting feature is the integration with Chrome’s browsing history that lets you select recently visited pages and recent Google searches.
Google links to a feedback form at the bottom of the search results pages and some of the options let you report spam, irrelevant pages and dead links. Unfortunately, Google doesn’t make it easy to select the pages you want to report.