From the US, and I also use "dub dub dub" (picked it up from my networking professor…), I've also used "hup-ta" to refer to "http://". ("hup-tis" is https://) It sounds ridiculous, but it flows a lot better than "ache tee tee pee colon slash slash".

(my co-workers understand this, and I think it's growing on a few. One still resists.)

Around my workplace we say "dub dub dub", or I do, at least. I think originally I picked it up from a Matt Cutts video on the Google Webmaster Central YouTube channel.

I go for "wuh wuh wuh" myself. "dub dub dub" reminds me of scouts, even though I never was one...

We use "dub dub dub" at work, though typically not when speaking the full name of the url. That may sound weird, so here's an example exchange:

"Go to foobar.com"

"It's not working"

"Try with dub dub dub"

As an aside, it's so painful to listen to radio commercials from advertising agencies that thought it was a good idea to include "www" in the script. "Just go to double-yew double-yew double-yew..."

Do we? The most common time-saving pronunciation I have heard simply uses the initial 'w' sounds from the three words, and therefore has three syllables.

I've heard that but primarily with inexperienced users.

I just looked at the Wikipedia page for http://en.wikipedia.org/wiki/Pronunciation_of_%22www%22 and have never seen so much unsourced drivel in my life. For the record, I have been pronouncing it the way I described in the GP comment for the last twenty plus years, so that's some sort of data point.

Well its Wikipedia. What do you expect. And as for me, it's purely an anecdote. I think it depends on where you are and who you know.

Citation needed.

err, no we don't, sorry!