Agree that endorsements are extremely valuable in a professional network. And, making it much easier to weigh in on endorsing someone should increase this activity. I also might not be willing to endorse every aspect of a person, (so would be unwilling to write out a paragraph of endorsing them), but I would be willing to endorse the one aspect of their professionalism I am willing to put my own name behind.
In the same vein, I'd rather endorse a particular ability or skill someone has than an entire position they held like LinkedIn makes you do. In an economy where we have periodic high unemployment, your skills are more important than how long you have held a particular job.
Electronic music charts that you can listen to, the twitter sign in is for the chat feature. It's meant to be music to work to all day. Sorry for the confusion.
I just don't want to connect sites together. Would much rather create a separate account at each website like the good old days. Puzzles me why new sites are cannibalizing their potential like this because I can't be alone in this thinking.
Limiting your audience from "fans of electronic music" to "fans of electronic music with twitter accounts (willing to trust us with access their data)" is quite a few people.