Microsoft CRM Customizations and Add-Ons

Mapping control:

http://www.dynamicscrmtrickbag.com/2011/05/28/dynamics-crm-2011-solutions-part-1/

Edit contacts in spreadsheet like grid:

http://www.dynamicscrmtrickbag.com/2011/05/28/dynamics-crm-2011-solutions-part-1/

Cascading pick lists using Javascript:

http://crmdm.blogspot.com/search/label/How%20to%20Filter%20a%20Picklist%20%2F%20Option%20set%20based%20on%20another%20Picklist%20%2F%20Option%20set%20using%20Javascript%20in%20MS%20Dynamics%20CRM%202011

Good website with all kinds of nifty do-dads:

http://crmdm.blogspot.com/search/label/How%20to%20add%20a%20new%20navigation%20link%20%2F%20Custom%20navigation%20link%20on%20the%20entity%20form%20in%20CRM%202011