Hello, I hope I'm posting this in the right place.

I recently was given 4 new plants and don't know anything about them, not even their names/types. I was not preciously a plant owner, but I want to take good care of these so they live long, happy lives.

Here are pictures of the four. http://img257.imageshack.us/img257/649/plantsleft5oz.jpg enlarge the page for best viewing.

Any help woould be appreciated.