I was exploring blogs of random people and I felt that I too need to start blogging.

Why? I would say:

• To keep track of what I had explored this day or what I had learned so that I look always look back find.
• It works as a formal diary, where I can look upon at the end of the day.
• Good for developing writing skills and typing practise.
• You can always add on.

These things need not be just a diary, as I can also write articles which will benefit people. Or lets see what it turns into.