As reported by the Globe and Mail:
The fine is the largest allowed by UK law, although The Reg describes it as "18 mins of profit" for Facebook, which is actually more than I expected considering how gigantic FB have become. One thing that's been pretty clear for some time, though, is that FB appear to have violated laws in any number of jurisdictions worldwide, including the U.S., the EU, Canada, and China, just for openers. This fine from the U.K. is likely only the first of many.
The fact that the largest penalty available to UK regulators amounts to chump change for the global tech giants they're ostensibly regulating provides a very clear demonstration of just how far behind the times our legal framework is. The world needs better tools for controlling these emerging mega-corps, and quickly.