Our cardio exercise database is always undergoing revision. Currently most of the entries are for standard exercises whose calories are easily calculated with the right personal data such as your weight.
Many popular exercise routines consist of complex series of movements, so the calories burned vary greatly for each individual.
Popular requests that we are already considering adding include:
P90X
Nia
Xbox Kinect
Jillian Michaels
Bikram Yoga
and several others.
We hope to add these items at some point in the future, when we have determined the best way to calculate the calories burned.
In the meantime, you can use a similar exercise from our public database, or read this article for advice on adding custom exercises to your personal exercise database.