1. Read customer testimonials before you buy anything. People are more than happy to complain about bad service online, so search for sites and testimonials which can be terrible so you know what you're getting into. You should take bad reviews with a grain of salt, but if you see many, you know there is a problem.
2. When you are searching for a place to buy a specific thing and none of the results are most often from familiar retailers, you need to be hesitant about entering your details. Look for security signs from Verisign or Cybertrust, which means you know the retailer is not out to take your money.
3. If you want to buy books online, you'll get a better deal if you get them used. Dependant upon the condition you get them in, you may just end up paying a few cents plus shipping. Make sure you read the description of the book to see if you can find any damages you should be aware of.
4. In order to buy a used product online, learn more about the vendor first. You ought to visit their profile and search for reviews written by other shoppers who bought products out of this seller. Do not hesitate to contact the seller to question a few questions regarding the product you are interested in.
5. Be careful which sites you patronize. It is difficult to learn which are in the up and up and which can be not, but there are a few clues. If the address does not sound right or the design seems off, go to a different site. In addition, if a bunch of pop-up windows begin appearing, close them out and move on.