Try this test, put together by InthePictureDesign on flickr.  He grabbed some pretty well known logos and we only get to see the first letter.  Can you identify the company?

So…how would your logo fare in a contest like this?  I know you don’t have a Coke or Disney budget, but within your sphere of influence — how iconic is your mark/name?

Answers:

Adobe
Barbie
Coca-Cola
Disney
Ebay
Fila
Google
H&M
IBM
Johnson & Johnson
Kellogg
Legos
MTV
Nintendo
Oakley
Puma
Quicktime
RAC
Sega
Texaco
Unilever
Virgin
Sony Walkman
XBox
Yahoo!
Zurich

Hat tip to Susan at BrandCurve for sharing this.