Deep Dark Web

1. There are always two sides of a coin, two natures of woods. Similarly Internet has two Faces ....Surface Web and Deep Web, Also referred as dark internet.
2. The Surface web is full of spams, bogey sites to the extent of 99% claimed by certain experts and rest 1%is porn. 
3. Besides that there are many pages not indexed by normal search engines like Yahoo!, Google, Bing etc.
4. These pages contain lots of information that is both useful and dangerous at the same time, depending on which side of morality You are.
5. Deepweb search and Tor are two most popular search engines used for exploring Deepweb. Some crawlers also carry out deep search.
6. Happy hunting