My favorite community site for workouts is Mountain Athlete
I use an excel spreadsheet, but this is the site i recommend http://dailyburn.com/
My trainer has me use FitDay
You can easily track all sorts of stuff, and its free.
Product Name has a free workout tracker that is actually quite good.
Here's some of my favorite sites that I primarily use for running (they also log in other exercises):
Please provide links to products you recommend or your answer will not be accepted.
Use this code to make a link. "Product Name":http://www.example.com → Product Name
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My favorite community site for workouts is Mountain Athlete