When configuring an internet facing CRM 2011, you need to setup Claims Based Authentication, the default timeout of the authentication is 60 minute, here's an article describing how to raise the value (the link redirect to a translation of the article, here's the original link in spanish).
CRM 2011 has added support for recurring appointments, the team blog as a nice article describing how to use linked fields to manage the link between standard appointment and recurred appointements
As I was off last week, here's a weekly summary.
Office 365 has gone beta, you can register on http://www.microsoft.com/en-us/office365/online-software.aspx, Microsoft CRM Online is not part of the offer, but the rumor mill is aiming in that direction...
The CRM Team has some interesting articles with a Performance Checklist (from experience the connections registry settings are especially important), Recurring Appointments and a SOAP Library for Silverlight
The CRM Uk Blog has an article on running CRM 4.0 client/Outlook 2003 on CRM 2011 (as it's a supported configuration for migration)
If you receive an error “Internet Explorer cannot display this feed” while connection the REST endpoint, Sven has a solution for you.
Leon Tribe has an interesting article on CRM Evolutions from the Forrester studies
The CRM 2011 Rollup 1 will be part of Windows Update on April,26th, so take extra steps if you don't want it installed. At the time of writing, no major bugs have been found in UR1, while a lot are fixed, so it may also be a good time to upgrade.
When connecting CRM 2011 online, if you get the exception Unhandled Exception: "System.ServiceModel.Security.MessageSecurityException: An unsecured or incorrectly secured fault was received from the other party", here's the solution.
If you are concerned about the security of your data in the public cloud, here's an interesting article about the UK Police using a private cloud for deploying Microsoft CRM.
By the way, Travi@ta has teamed with Belgacom to offer secure Microsoft CRM private clouds solutions in Belgium, you can find more information on http://www.belgacom.be/crm or direct contact info here.
Here's Sonoma Partners experience with their upgrade to CRM 2011
David Jennaway has made list of the different options available for upgrading Asp.net extensions to CRM 2011