Invisible Character from Twitter
When copying text from Twitter or Google Plus, you'll get a invisible Unicode character the “U+FEFF: ZERO WIDTH NO-BREAK SPACE” (aka BYTE ORDER MARK). And sometimes “U+A0: NO-BREAK SPACE” too.
When you copy and paste to your blog, these invsibile character may not be what you want.
for the tech savvy emacs users, you can use the following emacs lisp code to solve the problem:
Emacs Lisp: Replace Invisible Unicode Chars
You can write a {Perl, Python, Ruby, Bash} script to solve the problem. See:
see also Unicode BOM Hack