the ability to filter files searches by size...for instance..an option that allows you to not show any search results for any files less than 5 megs, 10, megs, 50, megs, 100 megs..ect ect...the ability to filter search results by extension type...ogg, mp3, avi, mpg..ect ect...*and also the ability to filter out keywords...(not in the options / preferences section) on the main displayed search page...that filters out keywords for each particular individual search.