linkedin-logo.jpgLinkedIn is offering 50 percent off the subscription price of its premium (“Business”) accounts, but you’ll have to move fast: the offer ends tomorrow.

With a premium account, you can send messages directly to people not in your network (“InMails”), and search for profiles not in your network.

We hear that a premium LinkedIn is a great tool–LinkedIn itself says InMails get a 30% response rate–and there have definitely been times that we’ve wanted to send a message and have been thwarted by our freebie account.

The caveat, though, is that the thing’s still kinda pricey. With a Business account, normally $24.95 a month but $12.48 if you sign up before Friday, you can send three InMails a month. If you want to send ten messages a month, you’ll pay $50.

At a 30% response rate, that’s more than a cup of coffee’d cost but is (probably) still worth it for that first connection. But we dunno. Your thoughts?