The world wide web has moved out of its difficult teenage phase and turns the grand old age of 20 this year.

It seems barely yesterday that we were logging on to info.cern.ch, or firing up our personal computers accompanied by the melodic tones of the dial-up modem giving the secret password to the server bunnies.

Wipe a nostalgic tear away and join us on a trip down memory lane to find out just which twenty websites have changed the world as we know it, and just where they've ended up.

Here's part one featuring the first 10 sites – check back tomorrow for part two where we count down the top ten sites.

Update: We just know you've been on tenterhooks since yesterday, desperate to know which sites make into the hallowed top ten websites that changed the world. Check out part two of the series below: