[thrwaway2365]

(disclaimer: former Yahoo employee)

Yahoo at the time was clearly underestimated from a developer point of view. Everyone just saw them losing ground to Google in web search, but they had a really strong development team at the time. Lots of great stuff was open sourced, even though they did not win the same status as Google

- YUI was a really good frontend framework based on components and events. It was so easy to create complex interfaces compared to others at the time.

- Hadoop open sourced big data management

- Vespa was a really good search engine in terms of performance and functionality. It seems to still be alive at http://vespa.ai

- They provided several useful APIs without the restrictions that Google and others often placed on their products.

They made some bad strategic decisions and other business decisions, but they had a lot of exciting technology that was often overlooked.

[ignoramous]

Yahoo should have pivoted from "web services" to IaaS like Amazon did with AWS, because it was no secret that Y! employed some of the best data-center folks besides Google and Microsoft. Could have been a different story?

[Terretta]

We used all these. Also Pipes. Thank you for your service. :-)

// YUI was underrated.