So if you've already exhausted stuff like this on YouTube:
Check out this thread from yesterday where someone wanted to know how give some hand-drawn titles a jittery look, apperently like the ones from the end of a movie called Silent Hill:
Then this videocopilot video gives a lot of advanced camera tips about flying through and around text. However you won't be able to create some of the particles if you don't have video copilot plug-ins:
There are dozens of techniques available. The best / easiest depends entirely on your project. I prefer setting up the entire project as a layered Illustrator file, importing the whole thing as a composition, then attaching the camera to a 3D null by parenting, then animating the position of the null. In most cases I only animate the rotation of the text layers. If they need to be distributed in 3D space I do all of that before I start animating the camera (by animating the null).
The way to get better at this kind of animation is to do a bunch of it and try different techniques. Start off by trying to duplicate what you like, then try do do something that you've never seen before. When Dynamic Text animations first started to appear on the web I was commissioned to do a bunch of them. It's been at least year since anyone has asked for another one.
Thank you very much...