It is not the most original idea, but it works. Find things your competitors are doing well and incorporate their ideas into your products. You probably haven't noticed a new Google feature called Search Options. When you do a search and then click the "show options" link at the top left of the results page you get a number of ways to slice and dice your results.
This is one of the reasons I continue to use other search engines like Exelead was this feature was not available on Google. Oh well, there is always Bing to test run this week.