Facebook, spying and a David v Goliath court battle – this week's European Court of Justice ruling on the Safe Harbor agreement had all the elements to ensure headlines were made.

Thousands of companies make use of the agreement when transferring personal data to the US, and the ruling in the case – brought by Austrian law student Max Schrems – that the scheme is invalid has prompted widespread uncertainty about privacy obligations.

Schrems was congratulated by whistleblower Edward Snowden as having "changed the world for the better", and lawyers may well agree, with Kemp Little data protection head Nicola Fulford telling the BBC that this ruling is likely to lead to "lots of contracts".

Clients are likely to have plenty of questions on the ruling, and many of these have already been tackled in articles available to download from Legal Week Law, our briefings library. If you are not already signed up for Legal Week Law, you can complete your free registration here to gain access – here are some of the briefings worth checking out: