1.) displays keyboard input sequences at keypress -- (%keyb.rebol)
2.) advanced 'help function. only available in more recent versions of REBOL. -- (%new-help.rebol)
3.) very basic, very famous "hello world". -- (%hello.rebol)
4.) cryptic code that evaluates to http://plain.at/vpavlu/REBOL -- (%vpavlu.rebol)