The New England Historical and Genealogical Society is making major moves into New York research, and extending little pseudopods even farther west. Here are Midwestern resources highlighted by Valerie Beaudrault in recent issues of their email newsletter:
Hamilton County, Ohio, Genealogical Society -- that's Cincinnati and suburbs to ordinary folks -- with online Cincinnati Newspaper Obituary Index (seven newspapers, some in German) and Cincinnati Marriage Indexes from several sources. The society also offers a transcription of the 1894 History of Cincinnati and Hamilton Co. Ohio.
Cook Memorial Public Library District in Libertyville, Lake County, Illinois (confusingly, the county just north of Cook County), with a local newspaper obituary index from 1894, and images of local telephone books from 1913 and most years 1924-1959. The library also has an online genealogy newsletter, and if you go there, offers access to the premier resource for original records from Sweden, Genline.
Winneconne Cemetery, Winnecone, Winnebago County, Wisconsin, with online indexes by name and section, and a cemetery map.