Who doesn't love HTML Entities, unicode characters and the like? I ♥ them!
Well, now there is a search engine named Amp-what to help you search for your favorite entities.
For example, here are the search results for weather:
Amp-what lets you search 14,500 HTML character entities. This includes common Unicode characters, 8859-1 characters, quotation marks, punctuation marks, accented characters, symbols, mathematical symbols, and Greek letters, icons, and markup-significant & internationalization characters.
This is pretty awesome!
Matt Cutts commented about this in a Hacker News thread saying "Wow, cool. Works great for things like "sun" and "snow" and "smile."
Forum discussion at Hacker News.