Occupy Wall Street analyzed from two angles--historical and economic. Start-Up City looks at Percolate.com. A writer and molecular biologist on why scientists should use social media. And Pubslush lets readers decide what should get published.

A look at social media and Occupy Wall Street; Twitter and Mexico’s drug wars; NYC start-ups Voyurl and Bundle; MuckRock makes government data more transparent.

The new patent reform law that tech entrepreneurs don’t like, an online game solves a scientific problem, WhatWasThere.com maps historical photos, taking aerial photos of the Gowanus Canal, and a graphic designer redesigns software terms of service.

A look at a project that uses crowdsourcing to document government violence in Syria. Plus: Hackers, for and against the Syrian regime. A mobile reading room cruises the streets of NYC, and Code for America matches coders with cities that need their help.

Schools spend billions on technology but as New York Times Tech Reporter Matthew Richtel explains, there’s no proof that it works. Anya Kamenetz on new routes to a college degree. And the MyBlockNYC co-founders show off their interactive mapping website.

Brian interviews public radio and TV host Tavis Smiley. They discuss Smiley’s latest book, "FAIL UP: 20 Lessons on Building Success from Failure" and Smiley’s career as a broadcaster, author, publisher, advocate and philanthropist.

A debate between the Washington Post’s Ezra Klein and BB&T Corp.’s John A. Allison on the question "Is Capitalism Moral?". The third debate in the First Principles series, sponsored by The Ayn Rand Institute, Demos, and WNYC's It's a Free Country.org.

The Supreme Court’s finding that violent video games are protected free speech. Then, our Start-Up City series continues with Artsicle. Plus: Privacy vs. cybersecurity, the Freedom Box, and the Moby Awards recognize the best and worst book trailers.

What two recent rulings mean for student free speech on the web. Plus: Twitter in the classroom, a web tool that promotes voting from home, and making online video more accessible. And as part of our Start-Up City series, we take a look at Catchafire.

The US is undermining web censorship abroad. New America Foundation’s Josh King explains. Then the NY Times’ Vikas Bajaj on the case of India. Plus: NYC tech start-up Postling, and a tool that shows the political contributions of everyone in your inbox.