This is a sign of a positive store. If you are thinking about buying from a site which you fount by simply using to search engine or general directory to find you need to look it over. If the site does not have a professional design forget it. That is the quickest way to turn a site down. After all, if they are real they can probably afford a nice design.
Contacts are also a good sign.
If they list addresses, phone numbers, ect. Remember, people are generally good. You can trust most of the e-commerce sites out there. The only people that get ripped-off are the people that don t know what they are doing. Always look into a site before you purchase from it.