What's a good place to research explosives without ending up on a list?

I enjoyed Chuck Wendig's post on [guns](http://terribleminds.com/ramble/2014/10/14/things-you-should-know-when-writing-about-guns/), I found it useful to me as a writer with little experience of shooty bang bang things.

Are there any similar posts or resources out there for explosives? I don't want to just start googling phrases and downloading the anarchist's cookbook, because *yet another visit* from the police would really irritate my wife.

Thanks in advance!