Most of these tips are common sense but if you are a newbie, it would be helpful to see them all in one place.
It might seem obvious, but one of the best ways to find an email address is to do a quick search for it online. If a search like “John Smith” + “email” doesn’t yield any results, there are several other ways to go about it. When you use quotation marks in your search, it tells Google to search for that whole phrase. In the example above, results will only be displayed for John Smith. A regular search might produce results related to many people named John and tons of Smiths.