How to design a database to store unlimited type of user informaiton

[Bill Leung]

HI,

Just want to design a database to store users' information. Basically, it should be similar to Facebook, so there will be a lot of fields, like, name, birth place, work, tel, ...............

But how to do this??

I try to make a table to store basic user information like, username, password, id, and email
and another one to store the type and the id of type of user information, like birth place, work company....
finally, another will store the type id, user id, and the content/information of the type of the user.

However, there is a problem that the data type of each information, like, birth place needs maybe 30 chars, but the "about me" need to be a text field...

How to deal with this problem??

Thank you!!