What are some interesting sites on the deep web?

I was asked to update this answer for 2017, since many of the links I posted originally are now down. So first of all, I assume that the OP meant “dark web,” as in Tor, I2P, and Freenet.

There are still some interesting links on Tor that I’ve come across more recently. First of all, if you’re looking to just find links, here are some of the current search engines on Tor (or that search Tor):

Search Tor Hidden Services - also available at http://msydqstlz2kzerdg.onion

TORCH: http://xmh57jrzrnw6insl.onion

not Evil: http://hss3uro2hsxfogfq.onion

As for interesting links, in and of themselves, there are some, but it can take awhile to find them. I’ve come across a few new ones lately:

http://lr26mtikxspwljvk.onion - MrFussy’s Home on the DarkWeb

http://bf7k7vgdi73oe2um.onion - The Dancing Monkey

http://3glt32zrequdwerh.onion/ - The Onion Directory (Links)

http://u7e7mnogoccvcdod.onion/ - Some mysterious site…oooh!

http://xrfspct6bs7i5wse.onion - Doxter (a doxing site)

http://underloopwhcyewa.onion/ - Tales from the Inner Loops

http://theflowdgcwknw37.onion/ - TheFlow

http://hcxztplepwtt73lj.onion/ - Hcxz Hacking Brazil (a forum)