Firebug is a free and open-source web browser add-ons for Mozilla Firefox, and now also for Google Chrome. Which gives facilities to the live debugging, editing, and monitoring of any website's CSS, HTML, DOM, XHR, and JavaScript.

Most of the times you need image gallery to show images in a better way. Here we are going to create Image Gallery in a simple way. For this you will need:

Simplenews publishes and sends newsletters to lists of subscribers. By Simplenews you can send nodes as newsletters to subscribers and it support for multi-language newsletters.

This module provides integration with MailChimp, a popular email delivery service. The module makes it easy for website users or visitors to control which of your email lists

CiviCRM is a customer relationship management suite that can use Drupal or other CMS to track contacts and their relationships to projects and initiatives.

Sometime you need to create conditional Field for displaying dynamic content to your user - using Drupal's form states(conditional fields). Its a Drupal Form API and quite easy to display any form content conditionaly.

In previous blog Create block through Custom Module in Drupal 7 learned about creating block through custom module. Now will learn Retrieving, Insertion, Deletion, and Updation through custom module.