Three great books
Statistics Done Wrong by Alex Reinhart. A big favourite of mine. Available for free online at http://www.statisticsdonewrong.com/ If anybody bought the book, please let me know about the added value.
How to Lie with Statistics by Darrell Huff. Review at ALiEM bookclub and available online for free to download (PDF). There’s a cool overview of letters on the subject. The book Naked Statistics (Economist review) has been dedicated to it, however, it does my no means approach the original.
OpenIntro Statistics: a college level textbook downloadable as free PDF!
Three good medical journal resources
Statistical Notes in the British Medical Journal (BMJ). Overview available here and here
JAMA Guide to Statistics and methods (here). Paywall for non-subscribers
Methodologie van onderzoek. Nederlandse Tijdschrijft voor Geneeskunde (NTvG). Available here (Dutch language)
Nature Collection: Statistics for biologists. here
Good statistical behaviour, a great PLOS blog article on ‘mind your p’s, RRs and NNTs’, available here.
One R tip a day http://onertipaday.blogspot.nl/
Wikipedia Statistics portal https://en.wikipedia.org/wiki/Portal:Statistics
And a great idea
Keep a Statistics Diary: Write every day 1 note on statistics. Andre Gelman‘s take and Alex Etz‘ take