I've been updating the Inspiration page of late with a few recent finds. One in particular that I think it really wonderful is the Scirus, a great search tool for science links and information. The site casts a wide net on different disciplines and you can narrow by abstract, articles--event patents.
I used it recently and found an interesting page on Archeology Anomolies, a thorough list of controversial discoveries and topics. I'm not advocating a particular stance here--just pointing out some sources to get the ol' Muse singing in your minds eye. Fair warning, it's long and you'll likely need to Google terms yourself, but it's enough to get you started.
In case that's too geeky, there's a handful of other links I sprinkled in on a variety of history, archeology, science, and other areas of interest. If you've got some you particularly enjoy, feel free to comment below and I'll look at adding them to the Inspiration page. This is a resource I'd like to expand and eventually organize.
Thanks and enjoy!