exploring the darknet and more

darknet (or 'privacy network') systems:
TOR
https://www.torproject.org/download/download-easy.html.en
To get you started, here is the link for the Hidden Wiki. This is where most people start their journey.
http://kpvz7ki2v5agwt35.onion

I2P
http://geti2p.net/en/

dot-bit
Namecoin is creating a higher quality 'darknet' which cannot be censored, through the power of virtual currency.
http://www.freespeechme.org/

dotbit.me .bit web surfer for google chrome
https://chrome.google.com/webstore/detail/dotbitme-bit-web-surfer/kkjfoinnbmgmjgmiakbbhggdmccbjhga?hl=en

dot-bit-proxy-extension for google chrome
https://chrome.google.com/webstore/detail/dot-bit-proxy-extension/boghalnjcplaepdogcbcfjgbaooakkik?hl=en

There is a lot of confusion in the media about this topic. Firstly, the darknet is sometimes confused with the deep web. The deep web refers to all parts of the internet which cannot be indexed by search engines, and so can't be found using Google searches. Expert estimates suggests that this deep web is hundreds of times larger than the 'surface web' (i.e. the internet you can get to from Google), leading to a certain amount of hysteria in some quarters. In fact the deep web includes large databases, libraries and members only websites which are not available to the general public. Most of the deep web is composed of academic resources maintained by universities, and contains nothing sinister whatsoever. Alternative search engines are available which are able to access parts of the deep web. One example of this which is aimed at the academic community is http://infomine.ucr.edu/.

Disconnect: open source extension makes the web more private, secure, faster
https://news.ycombinator.com/item?id=7456269

>> 51 free tools to stay invisible on the internet

IRC (internet relay chat) - a tool to connect you with people on the internet
https://en.wikipedia.org/wiki/Irc

http://searchirc.com/
http://www.irchelp.org/irchelp/chanlist/?
https://en.wikipedia.org/wiki/List_of_Internet_Relay_Chat_commands
http://www.wikihow.com/Get-Started-with-IRC-(Internet-Relay-Chat)
https://www.google.com/search?q=irc+in+browser&oq=irc+in+browser&aqs=chrome..69i57j0l5.2353j0j7&sourceid=chrome&espv=210&es_sm=119&ie=UTF-8#q=use%20irc%20in%20browser

Resources: 01, 02