The Radioactivity Module for Drupal helps a site administrator to define profiles that highlight content which is "interesting" in different ways. It also "decays" over time so that only the most interesting content right now is shown in the list. This video shows how to configure Drupal's Radioactivity module, and a little bit of views and drush for advanced site building.
Every day, millions of people check in on Foursquare. We took a year's worth of check-ins in New York City and Tokyo and plotted them on a map. Each dot represents a single check-in, while the straight lines link sequential check-ins.
What you can see here represents the power of check-in data -- on Foursquare, every city around the world pulses with activity around places every hour of every day.
Related: Also see our data visualization of four days worth of Foursquare check-ins in New York CIty during Hurricane Sandy (and the subsequent power outage) during October 2012: vimeo.com/52883962.
Big heavy images are responsible for most of the bloat on a responsive website, but it doesn't have to be that way. Here's the latest HTML elements you can use to keep your images small, and your site lean & fast.