[rajeev1123]

Yes, and I have one. Does about 7K per month and has been doing so for over 2.5 years.

All you need is a niche topic, lots of content and possibly great knowledge of SEO.

[troymc]

There are other profitable, ad-driven sites which offer web-based services, rather than content. The original Gmail was one of them (i.e. before there was a paid option).