One gripe I have about Netflix is the lack of any sort of sophisticated search mechanism. FlickSurfer is a web site that lets you search the Netflix database, guided by movie rankings on Netflix itself, IMDB, and RottenTomatoes.
You can order your results based on the date they were added to Netflix, their individual scores, or an average of the Netflix, IMDB and RT scores. You can select a combination of genres (such as Crime, Drama, Comedy, Horror) to further filter your results.
Looking for something to watch? FlickSurfer is genius.