LinkedIn seems to be mainly useful for people who have had fairly straightforward job experiences within limited industries. It also helps if one has easily highlighted skills, with useful endorsements and recent recommendations by people who know what you’re trying to do.
Numerically to date, my top endorsements are: Music, Singing, Writing, and WordPress, followed by other IT/Computer things (but Software Development?!) and Music things (but Music Theory?!). There’s almost nothing else about my academic work in musicology (just Editing) and absolutely nothing about my work in Library & Information Science.
I’ve added some categories, deleted others, and am trying to get some more recent, relevant people to help me update my skills endorsements and recommendations. I find that very few academics and librarians actually use LinkedIn, but please help me out if you are able to. Thanks!