Just a quick check of companies and businesses with cooler Acorn logos than AnnArbor.com.
Vanderbilt coffee mug logo. (Click on picture for larger version)
Acorn Electron Computer. (This looks like an upside down AnnArbor.com acorn)
MWS League Logo (acorn).
Acorn Alternative Strategies.
Stone Acorn Logo.
Acorns Children's Hospital.