Classified business is also a good online business which is gaining popularity on the Interent. We can take the example of OLX and Quikr which has got must reputation in very less amount of time.
If you want to have a website like Quikr and OLX, you can use Oxyclassified script. Oxyclassified is available for free and comes with so many features. It is easy to customize and use. It also has a strong admin panel for manage everything on the website. Users can embed images, videos and google maps in their post.
Search within category helps users to narrow the results and find what they are looking for. It also support login and registration using Facebook, Google and OpenID accounts. Posting and subscription is easier. It also supports various popular payment methods.
This script also support mobile devices. So users will be able to use your website on mobile devices.
This script is SEO friendly and use URL rewriting to write search engine friendly URLs. You can also use location based subdomain as you can see on OLX and Quikr. It automatically generates Google sitemaps and updates it each time a new post is added.