Architectural Overview of Office SharePoint Server 2007

http://msdn.microsoft.com/library/bb447580.aspx

10 Best Practices For Building SharePoint Solutions

http://www.go4sharepoint.com/Links/10-best-practices-building-sharepoint-89.aspx?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Go4sharepointcomHotlinksRssFeed+%28Go4Sharepoint.Com+Hotlinks+RSS+Feed%29

Talk to SharePoint Through its Web Services

http://www.go4sharepoint.com/Links/talk-sharepoint-through-web-services-86.aspx?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Go4sharepointcomHotlinksRssFeed+%28Go4Sharepoint.Com+Hotlinks+RSS+Feed%29

Best Practices for Speeding Up Your Web Site

http://developer.yahoo.com/performance/rules.html

sharepoint tutorial

http://www.sharepointhostingprovider.com/sharepoint-tutorials/

http://office.microsoft.com/en-us/sharepoint-designer-help/demos-a-six-part-series-on-getting-the-most-out-of-sharepoint-designer-2007-HA010219984.aspx

http://www.microsoft.com/downloads/en/details.aspx?FamilyID=c010fc68-b47f-4db6-b8a8-ad4ba33a35c5&displaylang=en

http://www.sharepoint-videos.com/all-free-videos/

http://blog.sharepointhosting.com/Downloads/SharePoint-Tutorials.aspx

virtual path to absolute path

Converts a virtual path to an application absolute path.
VirtualPathUtility.ToAbsolute("~/media/images/" + panel.Id)

use MapPath to resolve virtual paths and physical paths.
HttpContext.Current.Server.MapPath(@"xml/content/" + lXmlFile);
HttpContext.Current.Request.MapPath(@"xml/content/" + lXmlFile);

cookie stuff

http://www.allaboutcookies.org/manage-cookies/index.html