Let you use node tokens in the title and alt fields for the core image module. Core already comes with the option to use user tokens but not node tokens.

"The proposed HTML "picture" element (see responsiveimages.org, but has not been accepted for HTML 5) is implemented as a display formatter for image fields. This module is a backport of Drupal 8 picture module. This module will deliver alternate image sources based on device capabilities to prevent wasted bandwidth and optimize display for both screen and print. "

Just in case the tutorial is ever taken down, this is copied from: http://getlevelten.com/blog/ian-whitcomb/defining-custom-field-types-drupal . An example of creating a compound field in Drupal.

This is how to create a plugin for CKEditor. I also show how to integrate it with the WYSIWYG module. It was tested on CKEditor 4.3.4 and the WYSIWYG module version 7.x-2.x-dev from 2014-Mar-20.

Here's how to customize CKEditor in Drupal 7. I recommend using the WYSIWYG module instead of the CKEditor module if you plan on having media module integration. I was not able to get media module working with youtube videos and CKEditor 4+ and apparently that's a known issue (Apr 26 2014).

Bundle Copy is in Drupal 8 Core CMI. It is a replacement for the Content copy module which lives in the CCK project for Drupal 6.

"Set JPG quality per image style
This module allows you to specify a custom quality on different image styles you create. After installing and enabling this module, you will have the option to add a new effect to your image styles, enabling you to change the quality."

Let's you add views to entity types as extra fields.

This Drupal module adds a field type for referencing a view.

"Defines a field type Block reference which allows the block to be displayed as the content of the field." Alternately, if the bean module is enabled, blocks can be referenced using the entity reference module instead.