One of my favorite BizTalk gurus is Richard Seroter. Richard is one of the those talented, visionary guys that I've always enjoyed working with and around. While he recently left Avanade to join Microsoft, we stay in touch and I read his blog religiously.
He just published a great step-by-step example of Building and Executing a BizTalk Single Sign-On Scenario; I recommend you read it if you see a SSO opportunity in your near future, and bookmarking it you don't (sooner or later you're going to need it to pass a security review - the question is not if, but when). And regardless, I highly recommend subscribing to his blog!
Just wanted to take a second to clarify my purpose in having this blog. It's not my intent to use this is a news distribution service. A few of the bloggers that I read often focus on news dissemination and they have their place - it's just not the place that I want for this blog to live. I want to publish original works, including papers, position statements, and utilities that may be of interest to others in the Connected Systems community.
That said, I do leverage the work of lots of others in the blogging community and as such will occassionally link to their original works. Please check out any cross-links that are of interest to you.