CopyPasteCharacter.com is a web and iPhone application for copying the ‘hidden’ characters that comes with the computer’s typefaces, to be pasted into emails, tweets, text documents, forums and whatever else you might need to spice up with an extra. It automatically copies special characters you click on to your clipboard.
Click to copy a character; if you need to copy more than one, hold down the alt key on your keyboard and click the characters you want. There’s a slider bar at the bottom of the page that changes the size of the characters.
[advt]The drop down menu in the middle of the page brings up links to sets of characters – arrows, classic, currency, graphic shaptes, mathematical, numerals, punctuation and symbols. You can view all the characters, sort characters by alphabetical order, and search for specific characters.
Special characters can also be used on Twitter, Facebook, Gmail, and Google Chat. This PCWorld article has directions and a good section on creating emoticons. HTML Source has a good list of markup related symbols with handy sections on standard letter variations, punctuation, mathematical symbols, Greek letters and special spaces with their keyboard codes.