Add all Flickr photos at the same time and in the same <li> element;
Add Isotope for those Flickr photos to improve usability of the page size;
Improve site performance by calling just once to the Flickr API for each trending topic;
Truncate text for Facebook and Google+ posts;
Start using templates for all kind of sources;
Improve the GUI by adding some little effects and some title HTML attributes to elements;