LinkedIn charges $250 a year to view users' full profiles.
linkedin.com
linkedin.com
...and I never use it for anything.
Obviously some people have figured out how to use LI for their benefit, but I haven't.
1. Request for introductions. If there's anyone I want to get connected with, first place I go to is LinkedIn and see if he is friends with any of my friends. If a friend of mine knows him, I will ask my friend to send a personal intro.
2. Look for outside experts. Yesterday I was looking to connect with some iPhone game devs. I posted a discussion on 2 LinkedIn groups (GameDevs, and Social Game Devs), and I have received over 10 messages already.
It's a really powerful tool to create professional relationships.
I use LinkedIn to gather info only, then find them on Facebook; they reply awesome, if not move onto the next one! I did subscribe once to LinkedIn and let them continue to charge my card. Though once i tried to cancel it i ended up in web consumer cancelation purgatory; they let u in but make insanely difficult to leave. All web services do this - ick. Have a dislike for LinkedIn and all that pull such crap!
2. I have got at least one job where the hiring manager found me on LinkedIn
3. It's my rolodex
There are other uses. It's not a high touch service, but definitely very useful.
I started using it actually after a few of my friends have got jobs by using linkedin to contact former co-workers to see if their current workplace has anything available.
In Germany when I go to business events almost everybody hits up the people whose business cards they were handed within a day or so; in the US I've tried the same to discover that a large percentage of the people that I meet at founders' meetups aren't on LinkedIn.
The first use case makes a lot of sense for me -- if nothing else, it's an easy way to convert a business card to a vCard and have contact info track the person in question over time.
Perhaps it's useful for those recruiters who want to be the first to contact people when they get on the market?
I have always wondered why Facebook doesn't charge annual fee for their service. They are at the point where if they charge me $20/year, I am too dependent on it to not pay that fee. While you can argue another free service may come along and take all that away from Facebook, but building a 250M user base is not trivial...
I can clearly still view the full profiles of everyone in my network, hapless.
Regardless, it's impressive that LinkedIn has found a way to monetize data created by users, straight-up. Even if it's annoying. It won't actually stop me from using LinkedIn, after all.
(Actually, I have no use for LinkedIn, so I don't even have a profile. If I want to get a job or hire someone, I have other resources available. I believe they are called "friends".)
Think of their demographics
(Can anyone with this service provide a comparative screenshot?)
I don't get spammed daily by someone who searched for "All programmers listing Java experience" because LinkedIn's business model forces people to a) be serious about hiring from it (or you wouldn't be spending a few hundred dollars) and b) be selective about who you contact (rather than casting a dragnet).