If you have a search results page on your website, try to minimize the amount that users have to use the pager on those results.
Google gets away with showing only 10 results, because they are awesome at delivering what you are looking for in that first page. Your results probably aren't that successful.
Here is a simple measure: If more than 5% of the visitors to your results page click the next button, double the number of results you show on the page. Keep doing that until the number gets below 5%.