Blogger is a blog-publishing service that allows multi-user blogs with time-stamped entries. It was developed by Pyra Labs, which was bought by Google in 2003. The blogs are hosted by Google and generally accessed from a subdomain of blogspot.com. Blogs can also be served from a custom domain owned by the user (like www.example.com) by using DNS facilities to direct a domain to Google's servers. A user can have up to 100 blogs per account.
Up until May 1, 2010, Blogger also allowed users to publish blogs to their own web hosting server, via FTP. All such blogs had to be changed to either use a blogspot.com subdomain, or point their own domain to Google's servers through DNS.