Leaning past 3 days

Some new things I learnt in the last 3 days:
The site which outlines most of the highly scalable projects/sites:
http://highscalability.com/
This site discusses the arch of the following sites

• YouTube
• Flickr
• Amazon
• Google
• Plenty of Fish

For comparison of features between the basic, standard and enterprise versions of SharePoint :
http://sharepoint.microsoft.com/en-us/buy/Pages/Editions-Comparison.aspx