Lik`s forum

http://docstore.mik.ua/orelly/unix/upt/

http://www.ideone.com/

http://www.chillispot.info/
http://easyhotspot.inov.asia/

https://developers.google.com/speed/pagespeed/service

Page Speed Service is an online service to automatically speed up loading of your web pages.

How to use this service

You sign up and provide us with your serving and reference domains.
You send traffic to Page Speed Service by pointing your DNS CNAME entry to ghs.google.com.

Google serves requests received for your serving domain by fetching content from your reference domain and rewriting it.

Quick human-readable overview of RAID levels found at Adaptec official site:
Which RAID Level is Right for Me?

http://en.wikipedia.org/wiki/List_of_FTP_server_return_codes

http://omgipv6day.com/
http://test-ipv6.com/

http://www.drbd.org/docs/about/

http://www.cablemap.info/
Sumarine cable map 2012
Sumarine cable map 2013
Sumarine cable map 2014

http://www.guzu.net/linux/datarecovery.php