Some EMC Corp sites that are usefull to gain knowledge on EMC products (HW/SW):

http://www.emc.com/

https://community.emc.com/ 

http://www.powelink.emc.com/

http://www.education.emc.com/

http://www.privatecloud.com/

www.youtube.com/PointBB

http://www.datadomain.com/

http://www.iomega.com/

http://www.rsa.com/

http://www.mozy.com/

http://www.vmware.com/