Hey, Trisha! I'm a professional photographer, maybe I can offer a little insight :)
1)
- I get my photos printed from a professional print company (online). I've had good experiences with WHCC (White House Custom Color) and Miller's Professional Imaging. You could also check out Mpix, which is a division of Miller's for the "non-professional" - it just has less options.
- Another option, like Kari said, is to look for a local lab in your city.
- You COULD print at home, but unless you're planning on dropping a couple hundred for a really good inkjet printer (and you know how to calibrate your printer to your monitor), I would just leave the printing to professionals.
2) This is a tricky question. How much did printing cost/what materials are you using? Are your prints open or limited edition? How much time/effort was put into each photo? How much do YOU think your photos are worth? These are just a few questions I thought about when I began pricing my photos. No one can tell you what your photographs are worth. I would begin by figuring out the cost of printing, and go from there.
3) No. I have several other accounts where I showcase my photography, such as Flickr, 500px and a personal website, to name a few. However, as of now Etsy is the only place that I have my photographs listed for sale.
Hope this helps! Let me know if you have any other questions :)