A lot of these websites are owned by people I know personally or are largely considered saints by the community, but there are some I am unsure of. Just be careful, I am providing this list for the sake of the community, I expect you will use your best judgement when making purchases and shopping online in general. If there is one thing we know about the internets, thar be dragons. If you are trying out a store for the first time, try buy something really cheap to test it out! DEFINITELY post here with your reviews and feedback!
