Elephant – A beautiful open source project to store data in a way that's "as durable as S3, as portable as JSON, and as queryable as HTTP". Tim O'Reilly has talked about the web operating system, and HTTP, JSON, and REST-like APIs (without the annoyances of full REST) have become the interface layer. I know integration will be do-able whenever I see a project based around them.
Median SF rent for a one-bedroom apartment – I wish Craigslist made their data openly available. It's already public, why not enable more useful services like this?
Everything We Know About What Data Brokers Know About You – The data about us that's used for marketing purposes is essentially unregulated. As someone who works with data about people for a living I'm glad I'm able to innovate, but I'm also depressed by how little the public actually cares about how their information is passed around and used.
The Design-Fiction Slider-bar of Disbelief – A corker of a listicle from Bruce Sterling, covering the continuum from imagination to regulation.
Scrapely – I love pulling data from messy HTML pages, and it's great to see more and more support emerging. Don't give me an API, just give me an open robots.txt.
Pete Warden's blog 