Despite the fact that we now have a ton of other ways to entertain ourselves, books still remain a popular item that a lot of people buy. Sure, they may not be as popular as they were in the days before the internet, but they are still being sold in large numbers. In fact, book stores and online book sellers are doing very well these days. There is one particular market for books that remains widely untapped by many people who sell things online, and that is the used book market. There are plenty of people who are interested in buying books, such as Romance Books that would be hard to find anywhere else. This is often the case with older books that are now out of print, so the only way to get one of these books is to buy them used.

Works of fiction, such as Romance Novels, are good to resell, because they never get "out of date", unlike, for example, books about technology.

If you are involved in selling books online, you will find that many people are eager to buy them. Now the main question that remains is: where can one find used books that can be resold online at a profit? In many cases, these books can be found in local garage sales. Just look around your area to see if someone is having a garage sale, and the chances are that they will have some books that they want to get rid of. Very often you can buy some very interesting books for just a few cents.

Another way that you can find books to buy and re-sell is by looking at online classifieds sites. When people are moving, they are often looking to get rid of stuff that they won't need at their new house. Very often this includes some of their old books. In fact, it is not rare to find someone who is willing to sell an entire box of books for a few dollars or even to give them away for free.

Once you have some books, you can then resell them at an online marketplace. Ebay is a good option, as it is the world's biggest online trading site. There are more specific publishers for special interest writing such as Erotic Books and romance novels as well.

Even though you will likely start out slow, you will soon see that it is possible to make a good side income by selling used books on the internet. It's also quite easy, as all you need to do is to find some cheap books, put them up for sale online, and ship them to the buyer once somebody purchases one of your books. If you want to make even more money, try to find out which books are highly sought after, and see if you can find any of those.