Hi guys,
As a gift to this blog I present you some useful links, Hope you enjoy you self!
www.sharepointu.com
http://blogs.msdn.com/sharepoint/ http://www.microsoft.com/sharepoint those links can give you some original points of MS .
www.sharepointboost.com. where you will find some great tool like Sharepoint Alert Reminder Boost, Cross-site Lookup, name a few!
No matter what kind of service of produce you are looking for those links can provide you some access to the solutions!