If you’re looking for a way to earn more cash each month, you can do so with just your PC and a working internet connection. The ways suggested have been tried and proven and requires little effort on your part. For one you could choose to make a blog or forum and then choose ads from Google Adsense to make money. You could also choose to sell your old stuff on ebay, or partake in online gambling. There is also the option of uploading interesting videos to YouTube or selling iPhone apps. Whichever is more feasible for you, go ahead and try it.