The only thing I don't like about the Google tool is the times when it'll give a nice high number for avg monthly but no data for the previous month...it does seem to do that mostly on site names or terms without much advertising, but I caught it doing it on some full ads terms and it just makes me wonder if the number it's giving me is viable or what. Also, there are some times when phrases that aren't grammatically correct have unusually high
#s, but I wouldn't be surprised if the
#s are still right - I realize not everyone searches using perfect English.
Better than OVT though where you had to worry about plurals, discerning phrases with words like my and your, etc. our of the results. "space" would have a ton of results but how many of that would have been searches for "my space", which they weren't typically separating out? Plus you had to worry about word order, which usually you could figure out a bit through how many google results for exact phrase with different word orders of the keywords, but still - much easier now with the Google tool breaking all them out into their own
#s.