For internet savvy people, they should be familiar with the terms "blogger" and "vlogger". But for those who are just getting started on the web, they should know that these two terms are very similar as they are very different.
Bloggers have been around longer than vloggers. These people write articles for the web around specific niche (called blogs), allowing readers to read those articles over the internet like a newspaper or a magazine.
Vloggers on the other hand, are associated with the more modern medium, in which they create videos for the YouTube culture.