What should your site be doing?
This is a list that showed up on digital-web magazine over a year ago listing those things that a modern site should be doing. While it's hard for most casual developers to incorporate these into a homegrown site, it shows that one should really consider some of the great content management systems available when building a site. Most good ones will take care of a majority of these items. In the end, you need to decide what is and isn't important to you and your visitors.
Offering regularly updated information (blogs, CMSs, etc.) Increased efficiency in news and information distribution (RSS, ATOM, etc.) Alternative methods of information distribution (email newsletters, RSS, del.icio.us, etc.) Enhanced notification and announcement systems (pings, email alerts, etc.) A place for your site's users to offer feedback and input (blog comments, forums, etc.) Improved performance and code optimization (CSS, XHTML, etc.) Multiple ways to access information (multi-faceted navigation, folksonomies, etc.) Intelligent system to system communication (XML, SOAP, etc.) Collaborative communication and documentation (Wikis, blogs, etc.) On-demand support feedback (user-driven FAQs, click-to-chat, etc.)
Digital Web Magazine - News - Ten things your web sites should be doing