Actively maintained

Summary

This module will show all your sets and pictures from your Flickr account.
There's no need to create extra content types or feeds. Just fill in your settings and your gallery is done.
New features will be only available for Drupal 7 version.

You will need to download the libraries module and a module for which type of Lightbox you want to use. (Lightbox, Shadowbox, Colorbox, ...)

This module integrates Drupal with the Spector log aggregation system (http://github.com/theduke/spector).
It will regularily push the new log entries logged in dblog to your Spector server.

If you have the Mongo PHP extension installed on your Webserver it can be used.

Shortcut per Role

is an simple module to provide a functionality to assign different shortcuts per role.
Read: http://drupal.org/node/1122816
Requirements
Core shortcut Module

Spellcheck for Search API.

Results show: Did you mean [some suggestion]?. like in Google.

User modal module allows opening the Register/ Login/ Reset password menu items
as tabs. Since the tabs are shown via JS and not AJAX, this may lead to a better
user experience, as there is no time waiting for the selected tab to load.
The module requires the client have JS enabled.

The module comes with a well documented example module, that shows the user-modal and an example of how an implementing module can re-use the user-modal as subform to allow users to create an article node and login through a single modal window.

Editable blocks allows site editors to update content published in a block without exposing access to block administration.

This module is made for the situation when you have an Event where people can sign up for different time slots or shifts and for different roles in this Event.

The VoIP Twilio module makes it possible for the VoIP Drupal platform to make and receive text and voice calls via the Twilio Cloud Communications service (http://www.twilio.com/).

In particular, the VoIP Twilio module enables the creation of Drupal sites that:
* Are accessible via SMS and regular phone calls
* Can use a combination of 8 voices (4 male, 4 female) in 4 different languages for text to speech generation

Basic content administration module that provides tables similar to admin/content/node, but with a different user permission.
Also it provides a local task by content type, which is easier for end-user/client to use than the admin/content form.

(better description & screenshot to come)

It allows a user to more easily enter fixed width input where you would like them to enter the data in a certain format (dates,phone numbers, etc). 99/99/9999, a*-999-a999

Module works under Drupal 7, there is a similar project that works on Drupal 6 ( http://drupal.org/project/masked_input )
My version is more user friendly, now You don't need to know a element #id, just choose mask input widget and enter a mask.