you can find the useful information about Microsoft CRM 4, MS CRM 2010, XRM on those blogs..
http://www.crmug.com/
http://www.xrmvirtual.com/
List of CRM blogs..
https://community.dynamics.com/content/crmblogs.aspx?GroupID=22
Some Useful links about MS CRM..
CRM SDK 4.0
http://www.microsoft.com/downloads/details.aspx?FamilyID=82E632A7-FAF9-41E0-8EC1-A2662AAE9DFB&displaylang=en
Easy Customizations for MS CRM
http://www.xrmshowcase.com/solutions/view?solutionid=d9e0f58e-fa81-430e-86fa-e67aa00c2d1e
Audit Capabilities
1. http://www.xrmshowcase.com/solutions/view?solutionid=c0ef7bcb-0a66-4658-aa95-b6da8ea30011
2. http://www.consultcrm.co.uk/add-ons.html
Javascript Grid Editor for CRM
1. http://www.xrmshowcase.com/solutions/view?solutionid=a0d69487-a91a-4063-8671-93c45e31fe4b
2. http://crmentropy.blogspot.com/p/javascript-grid-editor.html
PowerSearch for MS CRM 4.0 by mscrm-addons
1. http://www.xrmshowcase.com/solutions/view?solutionid=acd78d8b-f98f-4425-bc9d-10945abb7fa1
2. http://www.mscrm-addons.com/Products/AddonsforMSCRM40/ActivityToolsforMSCRM40/tabid/160/Default.aspx
Caching tool for Microsoft CRM
1. http://blogs.msdn.com/b/joris_kalz/archive/2006/08/09/caching-tool.aspx
2. http://blogs.msdn.com/b/joris_kalz/archive/2006/08/09/caching_tool.aspx
Limitations of XRM
http://www.xrmlinq.com/crm-sdk-4-0-12-bugs-limitations/
Link to run report from workflow
http://a33ik.blogspot.com/2009/08/custom-workflow-action-which-renders.html
http://www.crmug.com/
http://www.xrmvirtual.com/
List of CRM blogs..
https://community.dynamics.com/content/crmblogs.aspx?GroupID=22
Some Useful links about MS CRM..
CRM SDK 4.0
http://www.microsoft.com/downloads/details.aspx?FamilyID=82E632A7-FAF9-41E0-8EC1-A2662AAE9DFB&displaylang=en
Easy Customizations for MS CRM
http://www.xrmshowcase.com/solutions/view?solutionid=d9e0f58e-fa81-430e-86fa-e67aa00c2d1e
Audit Capabilities
1. http://www.xrmshowcase.com/solutions/view?solutionid=c0ef7bcb-0a66-4658-aa95-b6da8ea30011
2. http://www.consultcrm.co.uk/add-ons.html
Javascript Grid Editor for CRM
1. http://www.xrmshowcase.com/solutions/view?solutionid=a0d69487-a91a-4063-8671-93c45e31fe4b
2. http://crmentropy.blogspot.com/p/javascript-grid-editor.html
PowerSearch for MS CRM 4.0 by mscrm-addons
1. http://www.xrmshowcase.com/solutions/view?solutionid=acd78d8b-f98f-4425-bc9d-10945abb7fa1
2. http://www.mscrm-addons.com/Products/AddonsforMSCRM40/ActivityToolsforMSCRM40/tabid/160/Default.aspx
Caching tool for Microsoft CRM
1. http://blogs.msdn.com/b/joris_kalz/archive/2006/08/09/caching-tool.aspx
2. http://blogs.msdn.com/b/joris_kalz/archive/2006/08/09/caching_tool.aspx
Limitations of XRM
http://www.xrmlinq.com/crm-sdk-4-0-12-bugs-limitations/
Link to run report from workflow
http://a33ik.blogspot.com/2009/08/custom-workflow-action-which-renders.html