Screenshot shows evidence for my use of Doodle. I think I first came across this device when Rowland Thomas at the Marshall used it to schedule a meeting, and I have been using it myself, probably, for a couple of years now.
I have looked briefly at the other meeting schedulers referred to in the Cam23 blog: Meet-O-Matic and Tungle. I once took part in a Meet-O-Matic poll, and was struck by how very 1950s it seemed, in its name and in the font for its name. Unlike Doodle, Meet-O-Matic seems to offer no option for letting participants see one another's choices, and that is a drawback.
I might come to look at Tungle more closely, and I dare say I will soon be taking part in polls organised by people for whom it is their Doodle.
I admit that, on my first or perhaps second encounter with Doodle, I experienced some disappointment at its simplicity. It lets you take people's votes, as to a date, or a policy, or some other decision. It doesn't, as I'd started to imagine, let you key in factors or criteria & offer suggestions towards the decision. Is that a fantasy of mine, or have I heard of web sites that do as I describe? Phil Bradley's list of Web 2 sites doesn't appear to include anything quite like that. Do you know of any?
But what Doodle does is indispensable, and Doodle does it better than the other means that are available. I remember trying to organise meetings by means of birdcages.