There are many reasons a genealogist should create a free blog. One is that it can be used to post images of documents you cannot read. I am a member of several mailing lists, one of which has several members who are good at reading German script.
Occasionally when I have something where I cannot read a word or two, I put the image on my blog and then post a message to the mailing list about the document I cannot read and then tell them where I have posted the image.
This makes it easier for them to try and help me figure out the document.
One recent posting can be viewed here:
I usually only post small things where I have a word or a phrase I cannot read. If it is a three page document, I usually try other options including professional translators.