After all, many non-English languages use characters outside the English-language ASCIIcharacterset. But I can't resist this small tangent, because it's too good not to share. Before I get into it, just one more word about Twitter.
Because they were added to the original ASCIIcharacterset, forming "extended ASCII" or "high" ASCII. This is virtually identical to a set of characters called Unicode, which itself is a greatly expanded version of the ASCIIcharacterset you may...
A title high in the alphabet or the ASCIIcharacterset offers no advantage with the major search engines. Two popular myths are that alphabetization in the HTML title tag or using a keyword in a URL can improve ranking.