I'm about to travel to Europe, spending time in Luxembourg, Brussels, Leipzig and Berlin. I have a linux-based e-book reader/mobile tablet
that I am trying to stuff full of useful goodness.
I have covered the reading-for-fun, maps, and media side of things, but I would like to download ebook-format guidebooks for my target cities.
I tried to google, but wading through the pools of spam and crap that shows up (and services that provide "free" ebooks when you sign up and pay a subscription fee) got too much for me.
Any ideas? I would spend a few dollars if necessary, but if it's going to cost the same as the physical book, I'm not interested.
And if anyone has ideas for other useful stuff I should load up my device with before travelling, that would be great too. Note that I can install anything that runs on ubuntu, but not apps designed for android or iphone, and don't have 3G or flash.