MS CRM has an announcement feature; however, to get the most out of this feature you might want to configure MS CRM so that when a user logs in this will be their default start page.
Choose announcements from the Workplace section of MS CRM and then off the Menu bar aboev the annoucements screen, Choose Tools, Choose Options and on the right hand side of the screen you can specify the default page. Drop down and pick Annoucements.
