Paleontological results are tested exactly the same way any other science is, by gathering more data to see how well it conforms to our predictions. The fact that we don't always find the specimens we want to test things right away isn't any different from astronomers needing bigger telescopes (or new space probes) or theoretical physicists waiting on new and more powerful colliders (which themselves may not get the results they want). Paleontology conferences are known more for frivolity (go to the SVP auction sometime!) and enjoying one's colleagues, not vicious politics. Feduccia feels persecuted for reasons that are starting to be similar to Velikovsky - he simply refuses to even interact with the rest of the science, instead simply rewriting the same ideas over and over again every couple of years in obscure (sometimes not even peer-reviewed) articles and not citing even a fraction of the relevant literature.
Speaking of which, while you are most welcome for the citations don't make the mistake of viewing them as a major portion of the work that opposes Feduccia, they were just the easiest to grab via Google searches. Dozens of papers and even more presentations are done every year on the topic - the evolution of birds from coelurosaurian theropods isn't merely well known, the transition of individual elements (like the palatine bone, or the nerves of the skull, or frontal lobes, or the avian-style supracoracoideus muscle, or the ascending process of the astragalus, or the reducing of the cervical ribs, or the reducing of the tail and concurrent shift from femur to knee-based locomotion, or the shift from laying lots of eggs at a time to shelling and laying just two at a time to finally just doing one at a time,. and on and on and on) are worked out. It's not a matter just of dinosaurs and birds sharing literally hundreds of characters not seen elsewhere, but that you can clearly see the acquisition of those characters adding up as you move up. It's not a joke or overconfidence when paleontologists say that the theropod-bird link is as well documented as the human/hominid link - it's that well understood and is documented in hundreds of publications.
Unfortunately I don't know of a single popular blog that sums it up, though Brusatte's textbook does a nice job of summing it up: http://www.amazon.com/Dinosaur-Paleobiology-Stephen-L-Brusatte/dp/0470656581/ref=sr_1_fkmr0_2?ie=UTF8&qid=1406252992&sr=8-2-fkmr0&keywords=dinosaur+textbook+brusatte
If you send me a PM with your email I can send you some technical articles if you would like. And perhaps I need to do a couple of blog posts, as this whole discussion implies a greater need to clarify the topic for general readers than I had realized was there.