Create a button like the Facebook "like" button in Drupal

I would like to create a button with the name "Participate" that works like the "like" button on facebook.

I have an contenttype called Event, which should show the participate button, that logged in users can click, and add themselves to the event.

When looking at the content for Event I would also like to display a list of the users which have clicked the Participate button.

Is there someone who can help me with how it can be solved or开发者_StackOverflow社区 what i should look into?

take a look at this module with some php knowledge you can make it , it's not what you really want but this guys pushed the hard part

The Activity module keeps track of the things people do on your site and provides mini-feeds of these activities in blocks, in a specialized table, and via RSS. The module is extensible so that any other module can integrate with it. The messages that are produced are customizable via the admin interface and are context sensitive. Some theoretical example messages include:

• You wrote a comment in response to "example comment title"
• Jim wants to be your friend. Approve this friendship here
• Nancy is Phil's latest fan

http://drupal.org/project/activity