Listed below are some of my recent findings for the best JavaScript Clipboard and Flash Detection scripts for web developers.
Clipboard Plugins
Developers can provide end-users the ability to copy text to their clipboard (eg. mimic Ctrl+C action).
ZeroClipboard
This is the most active clipboard project available. Most robust, lots of options and active community.
http://code.google.com/p/zeroclipboard
Example of ZeroClipboard with multiple per page
http://www.webmasterworld.com/javascript/3901742.htm
zClip jQuery Plugin
zClip Wraps the ZeroClipboard functionality into jQuery and is worth checking out for those using jQuery and seeking a quick clipboard implementation:
http://www.steamdev.com/zclip/
*jQuery Clipboard
*Another (older) clipboard plugins for jQuery. These only work prior to the "actionable-effect requirement" in Adobe 10 and works completely differently. *This won't work with the latest Flash versions*
http://plugins.jquery.com/project/copy
http://plugins.jquery.com/project/clipboard
Detecting Flash
Easily identify if the end-user has Flash capabilities installed on their web browser.
*Flash Detect (JavaScript Flash Detection Library) *
Doesn't seem to require a separate SWF file. Small and easy to implement.
http://www.featureblend.com/javascript-flash-detection-library.html
*SWFObject
*Another good options for Flash Detection that is very reliable.
http://code.google.com/p/swfobject/wiki/whats_new
Some example code can be found here:
http://stackoverflow.com/questions/159261/cross-browser-flash-detection-in-javascript
*jQuery Flash Plugin *
Used for embedding Flash movies but also has detection.
http://jquery.lukelutman.com/plugins/flash/