Four years and counting, Amazon's EC2 continues to impact changes in the way IT is being run today and possibly in the years to come.  This week's cloud computing roundup from the twitter stream.

Blog
Morphing of Work in 2020: Does cloud computing have a hand in this?

Coverage
Understanding Cloud Architectures | SXSW Panel Picker
10 Cloud Computing Startups | Cloudtweaks

Headlines
Happy 4th Birthday Amazon EC2! | AWS Blog
Our New Scapegoat: The Cloud | MSPAlliance
Cloud Computing: A Perfect Fit for Midsized Companies | CIO
Cloud: Professional Data Center Group Says Get On With It | InformationWeek
Future Of IT In Asia | Forbes
Building a Private Cloud: Get Ready for a Bumpy Ride | CIO
Hybrid Clouds May Take the 'Neat and Tidy' Out of Cloud Computing | eBizQ

Resources
Five Cloud Applications For Your Business | Servage
Cloud Computing: A Perfect Fit for Midsized Companies | Reuters
The Cloud: Avoid Vendor Lock-In | Processor
Cloud Computing Magazine Aug 2010 | Cloudbook
5 Reasons CIOs Adopt Cloud Computing Infrastructures | BlueWolf Blog
The Real Cost of Cloud Computing | DevX
Liability and the cloud | Gartner Blogs
Getting the Most out of Cloud Computing with the Self-service Interface | Service Catalog
The future cloud should fend for itself | CNET
The Top 50 Bloggers on Cloud Computing | Sys-Con

Numbers
Yankee Group Survey Finds Infrastructure-as-a-Service Adoption Growing | Business Wire
IAAS isn't just cloud computing fluff | CRN
Survey finds IaaS adoption growing | Newsbytes Phils
 

Events
Cloud Computing: Ready for Primetime! APAC Conf 2010  | IDC