I have just been given the complete 9-volume set of "Gjerstad av Bygdesoga" farm books for Gjerstad Parish in Aust-Agder Province, Norway. If you have ancestors from there and you have run into a brick wall in your searches in the Familysearch.org website and the parish church records on the Norwegian Digital Archives website, I am willing to do volunteer lookups in the farm books. My Norwegian is rudimentary, but I have dictionaries and can make out the basic family information in the books.