Hi all, I am now a student who is going to do some research about the mood on post from blogs. I found a paper "Experiments with mood classification in blog posts", written by Gilad Mishne, which use Yahoo API to get a list of 1000 web pages containing a Livejournal blog post with a specific mood tag. I've explored the Yahoo API for days, but I don't know which API I should use. Is there anyone who can give me some suggestion? Thanks!