urls

http://datadisk.co.uk/

Interesting Open Source:
corosync
openfiler
Linux Cluster Management Console:

http://architects.dzone.com/articles/who-follow-open-source-cloud

http://blog.programmableweb.com/

secure http
http://arstechnica.com/business/news/2011/03/https-is-great-here-is-why-everyone-needs-to-use-it-so-ars-can-too.ars

VeriSign ssl
https://knowledge.verisign.com/support/ssl-certificates-support/index?page=content&actp=CROSSLINK&id=AR198

U Wisc IT help desk
http://kb.wisc.edu/helpdesk/

Apache Wiki
http://wiki.apache.org/httpd/FrontPage
http://www.w3schools.com/

iOS SDK 开发
http://blog.sina.com.cn/iphonesdk

Pocket Guide
http://users.cis.fiu.edu/~tho01/psg/


nodejs
MongoDB
http://jetty.codehaus.org/


Dropbox Startup experience
http://techcrunch.com/2011/10/19/dropbox-minimal-viable-product/

NetApp
https://systems.nic.uoregon.edu/wiki/Netapp_Filers
http://www.netapp.com/us/support/university/learning.html
http://communities.netapp.com/community/netapp-blogs/shadeofblue/blog/2008/10/20/really-thin-provisioning
http://unixfoo.blogspot.com/2009/07/pocket-guide-for-netapp-commands.html

NetBackup
http://www.netbackupcommands.com/
http://www.linuxtopia.org/online_books/linux_lvm_guide/index.html

Xen
http://www.virtuatopia.com/index.php/Building_a_Xen_Virtual_Guest_Filesystem_using_Logical_Volume_Management_%28LVM%29
http://wiki.kartbuilding.net/index.php/LVM_on_XEN_%28dom0%29
http://greg.porter.name/
Backup XenServer VM script http://nchrissos.wordpress.com/2013/09/05/free-backup-for-citrix-xenserver-live-virtual-machines/

PV vs HVM
http://stackoverflow.com/questions/8103314/whats-the-difference-between-paravirtual-and-hvm-in-xen
HVM to PV
http://itproctology.blogspot.com/2009/06/pv-enable-hvm-on-xenserver.html#!/2009/06/pv-enable-hvm-on-xenserver.html

Cisco Aironet stopped working in Ubuntu Hardy

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/189398

Oracle
http://www.oracle-base.com/index.php
http://psoug.org/

Interactive Programming Tutorial http://www.ctothoughts.com/2012/07/interactive-programming-tutorials-net.html

Topic	Interactive Tutorial
REDIS key-value store	http://try.redis-db.com/
MongoDB NOSQL database	http://tutorial.mongly.com/tutorial/index
SQL	http://sqlzoo.net/
Python	http://www.learnpython.org/
Python	http://trypython.org
Ruby	http://tryruby.org
Haskell	http://tryhaskell.org
Scala	http://www.simplyscala.com
Python, Ruby, Javascript	http://labs.codecademy.com/
.NET	http://mottishaked.com/training/dot-net-tutorial
UNIX	http://www.cns.nyu.edu/unix/unix/demo.html#1
Fun social platform for collaborating	https://www.hackerrank.com/
Regular Expressions	http://regexone.com/