Welcome to Craftster Marigaki! As Annchen
posted, there are many different swaps and ways to swap here on Craftster. Themed swaps are probably our most popular, if you look through the archive of completed swaps
you can see how many different themes people have come up with. I think the reason most of us swap is because we like to make things and while creating for friends and family is nice, nothing beats creating for people who really appreciate the time and effort. It is a great way to meet new crafty friends, learn new skills/stretch existing skills and as a bonus you receive wonderful crafted things-my home is full of such neat stuff received in Craftster swaps! It is a little confusing at first but very addictive once you start
Here is a link to the Craftster Swap Guide
that has all the information about what you need to do to participate in swaps.