lrnr.net is a blog about learning (and development). It was started by Aniruddh (Ani) Mukerji in 2008.
All posts and pages published in this blog represent the contributor’s views. They do not necessarily represent the views of their employers or any other parties that may cause trouble if they write something opinionated or controversial on this blog.
lrnr.net 
while you have been fascinated by Tumblr but have left it because of inability to comment on Tumblr blogs, I think that you can integrate disquis on tumblr blogs