Facebook Lexicon v. Google Trends

One of the most interesting stories of the last week has been Facebook's introduction of their lexicon tool, "a tool to follow language trends across Facebook" (via All Facebook). Whilst the information provided is very simplistic, merely showing the rising and fall of the terms' popularity rather than specific numbers, it will be interesting to see how the popularity of terms equates to those that are searched for in Google (available via Google Trends). Are those terms that appear in wall posts the same as those that appear in Facebook wall posts? And do they follow the same trends?

For a quick comparison I took data from the two services for the term Christmas, a popular term that could be expected to vary over the year:
Google Trends

Facebook Lexicon

Unsurprisingly they both peak around the Christmas period, although the peak is much more pronouced on Facebook...all those Merry Christmas posts. To a certain extent the differences in these graphs is to be expected, but I'm sure that there will be a host of far more interesting comparisons in the months ahead.