I have 2 laptops and One of the Laptop is connected to Internet via Ethernet.
I would like to establish a ad-hoc network between these 2 laptops. Any suggestions/pointers would be really helpful.
For Windows 7 see this serverfault question: Windows 7 - wireless connection sharing
On a Mac laptop go to System Preferences
Under the Internet & Network section select Sharing
Check the box next to Internet Sharing
Select Ethernet 1 from the drop down "share your connection from"
Under "To computer using:" check the box for Airport