These types of sources more probably familiar to you. They're often available for free online, and they're not written with the formal tone of academic papers (hence 'popular' -- regular people are the audience).
Source titles might be descriptive, or they might be vague and enticing (or even misleading!). These sources often drop in stock art for decoration and may have ads on the page.
Limit a Google search to a particular domain by adding site:.gov or site:.org to your search. You can also search a specific domain, e.g. site:.nih.gov or site:cdc.gov. Try it below!
Note: be cautious with .org. It's slightly more restrictive than a regular .com or .net, but... it doesn't take much to form an organization with a .org page. If you've never heard of them before, do some cross-referencing of their claims or just look for articles about the organization on Google.
When you look up a topic overview in Opposing Viewpoints, you get a variety of source types back, one of which is websites. This section just recommends some major entities who are involved in policy or advocacy or public information for a topic.
Hint: you'll know you're getting a topic overview page with the options like those shown to the right if the term is in bold in the suggested search list that appears when you start typing.
Access online library materials through the library databases!
To access the databases from off-campus, you will be prompted to enter your 14-digit library barcode or your LSC email/password.
Don't have a barcode but want one? Request a barcode number online.
Evaluate your source's...
Is your source
Recent? Reliable? Relevant?
Is this source up-to-date? Is it about my topic, and does it go into enough depth? Does it come from an authoritative source? Is the information accurate (and are there citations given to back it up)? And why was this information written in the first place?