Oh, now I see, you meant you wanted a site you could trust. I don't know how you would know that or not since the sites are not subjected to a peer review process. Like the sites of the ACM and the IEEE what you're looking for may require you to purchase a membership or join the society. As for freely available stuff on the web, well it's probably worth what you pay for it. If I had to guess then I would start with one of the IEEE groups, or maybe the top Google hit:
**broken link removed**
I guess I trust the military to be a trustworthy site.