A good website with lots of information on how to travel- accommodation and transport- cheaply in Europe.
Eurocheapo has very good reviews of budget hotels all over Europe. Such reviews are written by its editors who normally turned up unannounced at these places. There are also good information and guides on transport options over the whole Europe. On top of that the site also has a blog that provide great tips and information on European destinations on everything that is of interest to travellers. Of course, one can book the hotels and airlines from the same site. I like the site because of the independent hotel reviews, tips, useful information and the ability to book accommodation online at these small budget hotels that one might otherwise unable to.