Send to Trello

Create Trello cards from other webpages (especially for: Gmail, FogBugz, JIRA, Redmine, Assembla, Salesforce, RequestTracker)It helps you to create a card in Trello from:
Gmail (subject as card name, content & link as card description)
FogBugz cases
JIRA issues
redmine issues
Assembla tickets
Salesforce cases
RequestTracker (RT) tickets
...or an arbitrary URL (page title as card name, page link & selected text(optionally) as card description)

How to use:
1.
Input your API Key (which you can get at https://trello.com/1/appKey/generate).
Authorize the site to interact with Trello.
You'll only need to go through those steps once per domain.
2.
Select the board/list that you'd like to add cards to.

Tips:
If you uncheck the "Ask me every time" option, from then on, you should be able to create your Trello card in one single click.
Once you create a new card, you can click "reset default board" in the notification area, just to reset this option.

The card created in Trello will:
attempt to use the name of the FogBugz/JIRA/Gmail/etc case
include a link to the case in the card description
(optionally) include any selected text in the description

Known issue:
It doesn't work on Github.

Thanks to danlec's project:
https://github.com/danlec/Trello-Bookmarklet