Entity
http://codekarate.com/daily-dose-of-drupal/drupal-7-entity-construction-kit
http://drupal.org/project/eck
e-learning
https://drupal.psu.edu/content/learning-tools-interoperability-drupal
block / field
http://drupal.org/node/1861942
http://www.webomelette.com/cool-module-floating-block
http://drupal.org/project/floating_block
http://codekarate.com/daily-dose-of-drupal/drupal-7-field-formatter-css-...
http://drupal.org/project/field_formatter_css_class
http://codekarate.com/daily-dose-of-drupal/drupal-7-field-formatter-clas...
http://drupal.org/project/field_formatter_class
UI
http://webwash.net/videos/using-talk-module-drupal-7
http://drupal.org/project/talk
http://codekarate.com/daily-dose-of-drupal/drupal-7-itoggle-module
http://drupal.org/project/itoggle
http://codekarate.com/daily-dose-of-drupal/drupal-7-speedboxes-module
http://drupal.org/project/speedboxes
Views
http://webwash.net/videos/using-views-infinite-scroll-drupal-7
http://drupal.org/project/views_infinite_scroll
http://webwash.net/tutorials/responsive-tables-drupal-7-footable
http://drupal.org/sandbox/thomastorfs/1267470
SEO
http://codekarate.com/daily-dose-of-drupal/drupal-7-site-verification-mo...
http://drupal.org/project/site_verify
Misc
http://codekarate.com/daily-dose-of-drupal/drupal-7-mailchimp-module
http://drupal.org/project/mailchimp
http://www.pronovix.com/blog/iamzoltanvaradi/making-mobile-scoreboard-dr...
http://www.whenwhowhere.com/tech-blog/load-content-depending-device-usin...
http://mydrupaltricks.be/article/drupal-7-how-use-google-analytics-custo...
http://wunderkraut.com/blog/the-wireframes-they-are-not-good-enough/2013...
http://www.drupal4hu.com/node/348
http://www.pronovix.com/blog/kdani/drupal-front-end-google-drive-ii
http://droplabs.net/news/otto-drupal-distribution-for-managing-coworking...
http://drupal.org/project/otto
http://24b6.net/2012/12/19/once-again-configuration-matters-or-dont-assu...
http://www.gizra.com/content/drupal-nodejs-pantheon-and-heroku
http://posulliv.github.com/2012/12/17/aiban-rest-access
http://wolfgangziegler.net/semantic-content-enhancements-drupal-apache-s...
http://drupal.org/project/salesforce
http://codekarate.com/daily-dose-of-drupal/drupal-7-fences-module
http://drupal.org/project/fences
http://www.webbykat.com/2013/01/styling-every-nth-element-css3-jquery-an...