People use them for gossip, their personal lives, technology talk, politics, rants, praises, work, and so much more.  They are a place to escape to and to post your thoughts.  It is not a diary; diaries are a personal reflection where you put the good, the bad, the downright ugly, and the beautiful moments that happen.  You do not have to censor yourself, or put up a front.

A blog seems like such a different world.  It is where strangers come to unite through common vague thoughts, but intimate details are often left out.  Unless you create a completely anonymous character for yourself, you run the risk of someone you know personally infiltrating this space if you hoped to keep it quiet.

Blogs began as an idealistic way of becoming known to the world.  The idea of letting strangers read your witty words, and letting your life be an example to someone else led everyone hoping for the popularity of anonymity.  There is sometimes a difference between pleasing an audience, or writing whatever the hell you feel.  What is interesting is to put the two together, and compare a blog and a diary.  This helps create a picture of the overall person.

Personally, I keep both.  I almost wish I did not, though, because one day these thoughts will probably be lost, or my diary will disappear, and I will be missing half of myself.