Photo sharing site Flickr is one of the leading lights of Yahoo - but cofounders (and husband/wife team) Caterina Fake and Stewart Butterfield won

Flickr co-founders Caterina Fake and Stewart Butterfield have now cashed out and officially left the company. Though Yahoo! doesn't appear to have internalized many of the lessons of Flickr, it's not too late for the rest of us to look at those same key lessons for inspiration in our work on the web.

Jinkies, you

Video! Video! Video! The rumours are true and “soon” is now. We’re thrilled to introduce video on Flickr. If you’re a pro member, you can now share videos up to 90 glorious seconds in your photostream.

A sumptuous assortment of exquisite textures in a variety of styles, from surreal to sketchy to painterly to pixelated 'n' glitched-up — most are a challenge to describe but tend to provoke smiles.

Earth Album's a clever Google Maps/Flickr mashup that lets you nose through some of the world's most eye-catching, beautiful photographs.

I don’t think this blog would be half of what it is without Flickr. The images included with most posts magnetize the eye to the page and create an atmosphere for the rest of the piece. It’s also one of the most commented-on aspects of the blog — the images are something I think leaves an impression on a lot of people.

watch the world take pics!

Welcome to the integral nerd-fest :)

Today we launched what's probably the most requested feature over the last few years: a way to categorize and organize your photo sets! In the past this feature has been referred to as "sets of sets" or "subsets". After today, we'll know it as "collections".