Shared web hosting is not free but the amount of money paid is not much. Here you will have to share the server and its resource with number of other website owners. You are allowed to have unlimited domain on a single account as compared to free web hosting. You may also be allowed to place advertisements on your site to earn some revenue. The problem with shared hosting is that the web hosting company may sell too many accounts with too little server space. The result is overcrowding and slow performance.