Finland's Family History Association
Finland's Family History Association nicely complements the work of the Genealogical Society of Finland. The latter is indexing parish records, while the former is digitizing those records and placing them online. A sizeable number of pre-1880 church records are available for browsing, and some sample census records. Many of the site's pages, and all of the digitized images, require knowledge of Finnish (and sometimes Swedish) words, so non-speakers should have a good online dictionary or glossary (like this) handy. Since records are arranged by parish and village, you would do well to first consult the Genealogical Society's searchable index.