There is a website by American Catholic that gives you a calendar with the patron saint of the day (typically based on feast day.) You can click on the link to the Saint and get some information about them, see some of their quotes, etc.
When I find a Saint that I can relate to or that I find particularly interesting, I also Google their name to see if they have a Shrine or an official association. I find a lot of great information about Saints on their Shrine or Association websites.
If you have an iPhone/iTouch/iPad the "Saint of the Day" app is also available.