For many years I posted about the I-P37 haplogroup on my other blog, cullengene.blogspot.com But eventually I started this blog and copied all the haplogroup-related posts here. At some point, all the old jpgs/image files disappeared from this blog, I don't know why.
Recently I found this site which archived the old posts from the Cullen blog:
When I have time, I will try to transfer the I-P37 haplogroup tree drawings etc to this I2a blog.
(Update: I think the images disappearing has something to do with me getting an Android phone, and somehow I moved the files around)