There are many pooja/ havan/ yagn performed in Sanaatan Society, some are practiced by followers of all darshans whereas some are followed by followers of specific darshan. With the same darshan also, there are variation in the meaning as well as practice of pooja etc. 

Here are a few links that describes various pooja.

URL Comments Darshan/ Sub-Darshan
Sanskrit Documents - Pooja Description, explanation and some video of many types of pooja done by mostly Hindus. Hindu - non-specific to an Sampradhay.