Welcome to the Q&A Forum

What is the difference between URL rewriting and 301 redirects? Specifically if my home page is rewriting the www. version and the /index.html version rather than 301 redirecting them is this equivalent? Does it still pass the link juice on those alternate variations the same way a 301 redirect will?

The content management system for my e-commerce site will not allow me to add both: unique content and unique title tags to each of my product category pages. Since I am forced to choose one or the other...which one is more important for rankings? And please dont answer "get a new CM system"...thats not an option. Thanks