I am a newbie web developer. I am embarking on my 1st major web site development. This site needs user authentication to access SQL Server data (raw data to html and also Crystal Reports web interface info). I will be using Frontpage/Visual Interdev, IIS, Windows NT, ASP, etc. I am trying to determine which authentication method I should use, why, and what are the advantages/disadvantage to whatever method you would recommend. This site will be used to update vendor information and to provide data to our customers. This will be hosted at an ISP and we will update SQL nightly. I have heard of NT authentication and authentication based on usernames/passwords stored in a database. Security is important but this isn't ultra-critical info. I am really clueless when it comes to the whole realm of authentication. Some suggestions as to the best method, pointers, authentication samples, links, whatever...would be helpful. I appreciate whatever help anyone could offer.