Remote-access giant LogMeIn just unveiled a fast, easy, and free way to share screens: LogMeIn Express. In fact, it's so easy that it might just edge out similar solutions like CrossLoop and TeamViewer.
Here's how it works: Without so much as signing up for an account, the host (or "sharer") heads to logmein.com/express, clicks the Share button, then waits while a tiny app downloads and runs. (Nothing gets installed.)
That app generates a 12-digit code, which the host can e-mail or verbally provide to as many as 100 viewers ( "share-ees"?). These folks type the code into the View Another Screen filed and click View. Presto: A screen is shared. The host can also enable remote control for one-on-one support or collaboration sessions.
LogMeIn Express is currently in beta and free while it is. I'm not sure it'll remain free after, but I suspect it will. I ran a quick test of the service and it worked just fine, though the host app took a couple minutes to generate its access code -- most likely a beta glitch.
I usually turn to CrossLoop when I need fast and easy screen sharing, but it does require the host to install a small utility. Next time, I'll almost certainly try the Express train.