Userscripts.org

By default, the Flickr home page shows seven images for you, fourteen from your contacts, and seven from a group. This script expands it to 10, 20, and 20, respectively. Requires Greasemonkey 0.8.

It overrides the flickr "Send to Group" button above your photo/video and lets you send your Flickr image or video to multiple groups simultaneously

Changes colour of all flickr pages pages to white text on a black background. You can also now easily customise the colours in the script to whatever your preference is, using the new colour configurator.

Adds icons for Mail, Profile, Favourites, Scout, Interestingness, DNA, and the user's photo archive next to usernames in forums and on individual photo pages. It also allows you to send Flickr Mails without leaving the current page you are on.

Lets you add tags to any flickr user, you can then view the tagged users via a whole range of different filters, including view by tag, view tagged users photos,favourites,testimonials,most interesting photos, photos of that user etc, etc

Lets you tag/categorise/sort your groups to help you find them again more easily and also lets you quit groups more easily

Adds local mini-database to color tag Flickr users you meet.

Flickr Quoter adds a "quote" link to flickr discussions in groups, forums, and Flickr Mail, making it easier to quote people.

Adds some options to help manage your Flickr mailbox. Including "Mark all as read" and delete all Notification emails, such as "you are x's newest contact" and Group Invitations, and also a "Nuke mailbox" function, that deletes all your mails

Script to add a textarea with BBCode

Adds a Google group search. The default search is baaad.

A script to remove the invisible image blocking images on flickr

Shows small picture version when you "mouseover" a flickr favorite.

Lets admins delete images from a group pool with 1 click, also lets you delete all a users images from the pool at once + also allows you to email + optionally ban or kick a user at the same time.

Adds tools for easier batch editing of titles and descriptions in the flickr organizer and also the "post upload" batch editing pages

Adds a select box with pre written comments, inviting the photo owner and viewers to join your groups.

Allows the searching for other photos that match more than one of a photo's tag.

Show all images by this user in this group's pool

GMiF - Display Google Maps in flickr

Shows the five most recent comments

Adds a button to the photo toolbar that lets you edit the image online then reupload it to Flickr

Quick access to user's interesting photos from the Buddy Icon Menu

Create a list of arbitrary photos in Flickr for batch operations

Overlay photos licenses

Adds a "mailto" button above Flickr photos, and also puts a "send page" link on every page, letting you send that page's link by Flickr Mail or Regular Email

Adds a ratings panel under current image in a Flickr photo page

Removes annoying info on Flickr homepage.

Adding a photostream box(timestream) to photo page to display the context in chronological order of date taken

Highlights threads in which you've participated in Flickr groups.

Makes it easy to do an OLE cut-and-paste Flickr photos to your blog (ie: WordPress using TinyMCE, Blogger) and give the proper attribution