1. Multiple login in yahoo Without Using any Software
1. Go to Start ----> Run . Type regedit, then enter .
2. Navigate to HKEY_CURRENT_USER --------> Software --->yahoo ----->pager---->Test
3. On the right page , right-click and choose new Dword value .
4. Rename it as Plural.
5. Double click and assign a decimal value of 1.
Its done!!
Now close registry and restart yahoo messenger and try Multiple Login

2. Increase the speed of your internet connection without a new modem
As more and more people get quick connections to the internet, such as cable or ADSL
, it becomes apparent to the user of a simple dial-up modem that the World Wide Web can quickly turn into the World Wide Wait. Here a trick that can help speed up your current modem without shelling out the big bucks.
There is a setting located in your windows registry called the Maximum Transfer Unit (MTU). This determines the size of the packets of data sent between your and your server. In Windows 95, this setting is has a value of 1,500 bytes when the actual size of internet packets is 1,000 bytes. This can sometimes slow things down. To remedy the situation, simply follow these steps:

In the registry editor (Start > Run > regedit.exe), navigate to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Class\NetTrans. In the NetTrans folder you should find another folder named "000x" in which x represents a fourth digit. Right-click on the "000x" folder and select New and StringValue. Rename the item that appears in the panel on the right side to MaxMTU, then double-click it to bring up the Edit String box and give it a velue of 1002.

Remember to keep playing with the MaxMTU value until you feel that your internet connection has greatly sped up. Some people report huge speed gains using this tricks, while others hardly notice a difference. In any case, it's definetly worth a try.

Trick To Make Your Firefox Fast
This tricks will improve the speed & load time of firefox. And you will be able to surf faster.Sometimes some of your friends who appear offline in yahoo messenger may not be actually offline, they may in the 'Invisible' mode. This maybe if they are trying to ignore you or are too busy to talk to anyone.There is this small trick that you can use to find out what the truth is.Firstly open your yahoo messenger main window and double click on the name of the person whom you want to check. The chat window will open obviously.Click IMVironment button, select See all IMVironments, select Yahoo! Tools or Interactive Fun, and click on Doodle.
After loading the Doodle imvironment there can be two possibilities

1. If the user is offline Doodle are will show this "waiting for your friend to load Doodle" continuously .See in the picture below:


2. If the user is online (but in invisible mode), after few seconds (it can take up to one minute, depending on your connection speed), you should get a blank page like in the picture below. So you know that the user is online.