Ann Arbor Observer 201 Catherine St. 769-3175 Observer publications combine compelling journalism with outstanding total-market-penetration circulation. Ann Arbor residents receive our monthly Ann Arbor Observer and Real Estate Guide, plus the annual City Guide. Households in Chelsea, Dexter, Manchester, and Saline get the quarterly Community Observer, including the annual Community Guide. The hard-cover Guest Guide reaches hotel guests, and arborweb delivers young web browsers. There’s no better way to reach Ann Arbor. Hours of Operation: Mon. - Fri. 8:30 a.m. – 5 p.m.