TechCrunch reviews Google's newish dictionary app here (Google's dictionary has been lurking around for awhile, but now it gets its own page here). I did a quick comparison of Google & Merriam Webster's entries for inappropriate and found they were remarkably different in scope. Google returns a lot more data (plus they provided links to other web definitions, which seemed to mostly be Wordnet links). I prefer Google's phonetic guide as it seems to be straight IPA (although their transcription of -pro- as pr'oʊ seems odd to me as it suggests a diphthong when I think they're just indicating rounding, but I never was much of a phoneticist, so no biggie).
I was particularly impressed to see some constructional patterns listed in Google entries (e.g., |'it' v-link ADJ to-inf| representing something like 'it is inappropriate to yell').
However, Miriam Webster still wins on historical data, minimal as it is.
