After googling many places , I managed to get these sharepoint e-books. And after a quick walkthrough i noted following things.
Some of the good sharepoint books are here.
Beginners
Beginning.SharePoint.2007.Building.Team.Solutions.with.MOSS.2007.Jun.2007
Lets move on with Professional Development
The book that really of interest and provides a deep into WSS 3.0 is
Microsoft.Press.Inside.Microsoft.Windows.SharePoint.Services.3.0.Apr.2007
After all, its from Microsoft Press :)
Sharepoint Administration
Microsoft® Office SharePoint® Server 2007 Administrator's Companion
For a comprehensive administrative related activities, this is a BIG BOOK
Some of the other E-books you might find handy at a time are listed below
- Professional SharePoint 2007 Development
So, when you start the development you find chm files for MOSS And WSS SDK very handy.
If you have installed MOSS SDK, this comes by default. If you have not done so, You can get those help file from here.
Now you have got plenty of resource for Learning and Developing application on Sharepoint. I personally feel that you should buy and keep a hard copy of WSS inside(Microsoft Press) and Administrative Companion for your library.