Redmond, Wash.-Microsoft Corp. and American City Business Journals Inc., the nation's largest publisher of metropolitan business newspapers, Tuesday announced they have entered into an agreement to provide small business owners with local business news and online business services. Terms of the deal were not disclosed. Under the agreement, ACBJ will provide updated content, including breaking, daily and weekly news about local and national business developments to Microsoft's small-business service customers in 40 U.S. markets. As new markets are added, localized content will be delivered through Microsoft's bCentral Web site. The agreement also encompasses joint marketing and online co-branding for both the bCentral service and ACBJ's bizjournals.com. MSNBC, a joint venture between Microsoft and NBC News, will be the premier provider of national news for ACBJ's Web site.