When I first started to drink Bourbon and whisk(e)y (neat, without coke or some other mixer) I wanted a way to keep track of my reviews. For several months I used a Google doc for all the whiskies I tried. However, this was neither convenient nor effective. My own frustration led me to build Bourbonr.com. Bourbonr allows you to add whiskies you've tasted to a whiskey library, as well as add reviews to these whiskies based on a score (0-100) and a rating based on 16 of the most common flavors in whiskey. When you can easily access Bourbonr's whisk(e)y database, decision making becomes a lot easier because you can see what others have rated a whiskey.
The two biggest problems I faced:
1. I could never remember which whiskies I tried and whether or not I liked them.
2. I was purchasing blind at the beginning. There is nothing worse than spending $50 on a bottle of whisk(e)y only to get home and find out it tastes like mouthwash.
Hopefully Bourbonr will help you solve the same problems I faced