Ruby script to open the contents of the clipboard. Just assign it to a global hotkey, like Ctrl+O, using Sparkle, Quicksilver, Alfred Powerpack, or your favorite hotkey app. Copy something to the clipboard, hit the hotkey, and it's opened up.

openclip.rb

#!/usr/bin/env ruby

# Opens the clipboard contents
# 1. Is it a file or folder?
# 2. Is it obviously a URL?
# 3. Google It

# clipboard contents
clip = IO.popen('pbpaste', 'r+').read

# open appropriately
if File.exist? clip
  system("open", clip)
elsif /\w[^\s]*\.(?:com|co|uk|gov|edu|tv|net|org|tel|me|us|mobi|es|io)(?:[ \r\n]{0,2}\z|\/.*)[ \r\n]{0,2}\z/.match(clip)
  clip = "http://#{clip}" unless (clip.index '://')
  system("open -a 'Google Chrome' #{clip}")
else
  google = "http://www.google.com/search?q=#{clip}"
  system("open -a 'Google Chrome' '%s'" % [google])
end