Surveymonkey:
1. A site which ignores accessibility concerns and/or legal requirements - ie: it excludes some people with disabilities 2. is not free software as far as can be surmised. 3. seems to be dependent on Javascript to display the ruddy textual content (!) 4. Does not fall within the remit with British privacy/data protection laws in any way. 5. Full of crappy tables used for typographical layout, doesn't validate etc. etc.
So much like many crappy websites then, and probably a pretty defective non-functional suggestion on the whole - even if it weren't being suggested as an alternative to some actual, you know, sorry to mention these words and everything but Free, Open Source software that runs on Linux.
/me flushes SurveyMonkey.