You've been able to tether your iPhone's data connection to another computer for awhile now, but it would cost you $20 per month for the convenience or you'd need to be jailbroken to get the service to work. Tether.com just figured out a way to circumvent the problem using HTML5, so you can use their new web app to tether your iPhone wirelessly without any fancy hacking necessary.
The video above will walk you through the whole process, but it essentially involves downloading the Tether app for your computer and visiting tether.com/web on your iPhone. On your computer, you'll first create an ad hoc network using the Tether app. This is a mostly automated process, but you'll need to choose a very specific password (or opt to have none at all). You'll then head into your iPhone's Settings app, choose the ad hoc network from your Wi-Fi options (it'll be called tether.com:YourComputerName), and then visit tether.com/web in Safari. From there you just log into your Tether account and everything should connect in a few seconds. Assuming everything goes to plan, you'll be able to use your iPhone's data connection right away. Sweet!
If you don't have a Tether account already, you should know that it costs $15 for the first year and $30 for subsequent years. This is already less than the monthly fee you'll have to pay your carrier. While jailbreak apps and your carrier's tethering option will be a bit easier and offer more features, if you're looking for an inexpensive way to tether your iPhone without jailbreaking this is definitely the way to go.
Note: When testing, things didn't work as planned the very first time but I had no problems after starting over and trying it again. If you have difficulty, just start over from scratch (which only takes a few seconds) and you should be good to go!
Tether for iPhone | Tether.com
Hiding your privacy is extremely important in some cases while surfing on the internet. There are some methods for surfing on the internet anonymously such as using proxy and connecting to Virtual Private Network (VPN). You can use these methods for accessing any blocked websites in your country, school, institute or organization. For example, in your institute they have blocked facebook, Virtual Private Network can be used for accessing facebook. In this method, your actual IP Address will be hidden so that anyone can't identify your IP Address. Nowadays, there is a PROMOTION on vpnod.com for providing VPN connection for everyone, so you can connect to their VPN for free of charge. Visit their website from below link.
Hence, vpnod instantly send your an email containing your login details for configuring a VPN.
Let us see how to configure a VPN connection with these details.so, I am using windows 7 operating system for this task. At the beginneing, go to the Control Panel > Network and Sharing Center.
Here, click on the Set up a new connection or network .
Wireshark Cookie Dump:
Enter the internet address as vpn.vpnod.com and Destination name as VPNOD as shown in figure above.
Enter your username and password which you got from the email from vpnod.com. Then, create the connection. Now, you can click on the Network icon in the taskbar, it will display all the network connections including vpn.vpnod.com 
Now, you can connect to the VPNOD connection by click connect button under the VPNOD. If you can want, you can check your IP Address from http://whatismyipaddress.com/