I was wondering, is there a way to track particular questions in Stack Overflow? For instance, if I see a question asked that I would like to see the answer to, is there a way that I can mark that question so that I can come back to it later?
There is a pretty useful StackApps app called StackStalker (Google Chrome Extension) written by Jason Edleman that does exactly this (Including notification badges). You can check it out here:
Each question has an RSS feed that you can subscribe to if you need to see everything that happens.
Otherwise, favouriting the question is a pretty good way to go.
Put them in Favorites, click on the star under the votes of your question. Here is how you can watch them - In your profile page there is a Favorites tab, it lists all your favorite questions.
Click the star to the left of the question.