There are two main approaches for adding user controls to your site: Deploying them to the "wpresources" folderUsing the DelegateControlMany people have blogged about each technique, but which is the best or the recommended approach?Tony Rahbun has posted an article called "WebParticles: Developing and Using Web User Controls as WebParts in Microsoft Office SharePoint Server 2007" http://
Read the complete post at http://dhunter-thinkingoutaloud.blogspot.com/2007/07/hosting-usercontrols-vs-delegate.html