Family Search - this is my go-to for general genealogy. This free LDS-funded site is for searching family trees, censuses, various records (vital, land, court, and more), as well as sharing photos and stories. You can give back by volunteering on transcription projects.
Ancient Landmarks of Plymouth Project - this is a transcription of the book by William T. Davis. If you have any family in Plymouth, Massachusetts in the 1800s or prior, it is well worth searching the index for their surname(s) and reading the entries.
Nova Scotia Historical Vital Statistics - a free searchable database of births, deaths, and marriages in Nova Scotia. Absolutely recommended for anyone with ancestors or family in the province. There are some gaps in the coverage, but you will not find a more comprehensive online resource for Nova Scotia vital records.
Library and Archives of Canada - known for the widest variety of microfilm and digital holdings for all of Canada, it can take time to learn your way around the site. The digitized microfilms are not indexed, so you're in for the long haul if searching through them, but you can do it from the comfort of your own home.
Copyright (c) 2016 Wendy L. Callahan