This is the second announcement of the 2007 Winter Midwest Topology Seminar to be held at UIC on Saturday, February 24. Schedule: (Talks in 636 SEO) 9:30 Coffee in 300 SEO 10:30 Paul Goerss (Northwestern University) "Sheaves on the moduli stack of formal groups and the chromatic decomposition of stable homotopy theory" 11:45 Richard Kent (Brown University) "Geometry and the Mapping Class Group" Lunch at local restaurants 2:30 Dan Dugger (University of Oregon) "Quadratic structures in motivic homotopy theory" 4:00 Ruth Charney (Brandeis University) "TBA" 5:15 Party in 300 SEO In addition to his talk during the conference, Dan Dugger will be giving the Department Colloquium on Friday, February 23, at 3pm in 636 SEO: "Sums-of-squares formulas and motivic homotopy theory." Parking (in yellow on the campus map at: http://www.uic.edu/depts/adn/itl/maps/uicmap-en.html ) is available at 760 West Taylor St. The entrance/exit which always has an attendant is 1/2 block west of I-90 on Taylor. All events take place in SEO which is the second tallest building on campus, see the campus map.