The introduction of eggcorns
Language Log takes a look at the prevalence of inclimate weather instead of inclement weather. The correct version is still 16 times as prevalent as the incorrect, but it's an interesting phenomenon and something to watch out for.
This is as good a time as any to explain the site's eggcorns, for example mistaking the word acorns to be egg corns. They are part mondegreen, part malapropism, words created by a trick of the ear. And they're fantastic fun to read about.