SharePoint links ..

Good Url (only sharepoint)
http://sharepointquicksolutions.blogspot.in/
http://www.enjoysharepoint.com/
http://www.sharepointdiary.com/

http://mekishordas.blogspot.in/2013/03/sharepoint-interview-qa-iis-worker.html
http://www.learningsharepoint.com/2010/07/26/sharepoint-2010-workflow-interview-questions/
 Good Vedio
http://sharepoint-videos.com/module-8/creating-a-sharepoint-2013-subsite/
http://sharepointtips-tricks.blogspot.in/
Good Url
http://skdeveloper.wordpress.com/category/sharepoint/
http://www.mindstick.com/Articles/049081ce-2993-4d31-81f8-b1e7d7ed7599/?Business%20Data%20Connectivity%20service%20in%20SharePoint%202010
ADD|Update|Delete Item SharePoint Web Services
http://sarangasl.blogspot.in/2009/12/addupdate-list-item-using-sharepoint.html
For Custom Web Part 
http://sarangasl.blogspot.in/2009/09/custom-sharepoint-webparts.html