The FT has published what looks like a souped-up version of its editorial style-guide online for free.
The FT Lexicon looks like a useful resource for anyone who finds themselves writing about business. It is a handy searchable list of 10,000 business terms with practical definitions.
Email pged@pressgazette.co.uk to point out mistakes, provide story tips or send in a letter for publication on our "Letters Page" blog