The userplus module enhances Drupal's user administration and Organic Groups' subscription administration by allowing administrators to add multiple users at once, make multiple group assignments at once, and make multiple user role assignments at once.

Case Tracker enables teams to track outstanding cases which need resolution.

Adds the Google Analytics web statistics tracking system to your website.

The module allows you to add the following statistics features to your site:

• Single/multi/cross domain tracking
• Selectively track/exclude certain users, roles and pages
• Monitor what type of links are tracked (downloads, outgoing and mailto)
• Monitor what files are downloaded from your pages
• Custom dimensions and metrics support with tokens
• Custom code snippets
• Site Search support
• AdSense support
• Demographics and Interests support (formerly known as DoubleClick remarketing support)
• Anonymize visitors IP address
• DoNotTrack support (non-cached content only)
• Drupal messages tracking
• Modal dialog tracking (Colorbox)
• Access denied (403) and Page not found (404) tracking
• Cache the Google Analytics code on your local server for improved page loading times
• Enhanced Link Attribution support
• User ID tracking across devices
• Changing URL fragments can be tracked as pageviews
• Debug mode with analytics_debug.js

For best Views & Rules integration, and bug fixes, please use the latest -dev version. - @hejazee

This module provides users with the ability to refer other users to a site they are registered at. When the new users registers, the referral is recorded.

This module provides advanced email address checking.