Taste and recommendations

John talks about Taste and recommendations, only realised yesterday that the first time I started working on such a project is over 10 years ago.

I believe it was the summer of 96 when I was writing perl scripts at Riverland to create content for an online restaurant recommendation guide . Only today we see the same kind of tools resurface, but today they have an audience, or rather a userbase.

What happened to Collaborative Filtering ? What happened to Firefly ?
What happened to Pattie ?

Why did it take us almost 10 years for technology to become mainstream or usable ?