I\'m working on a .net portal which would be having lots of concurrent users.
so scalability,performance need to be addressed in the design and architecture.
We plan to use load
There are some good performance and scalability points in these articles from Omar Al Zabir.
10 ASP.NET Performance and Scalability Secrets
and
99.99% available ASP.NET and SQL Server SaaS Production Architecture
(also check out his book Building a Web 2.0 Portal with ASP.NET 3.5)