Literature Review Topic: What Do Teens Think About Their Public Library?
Limit to peer reviewed or scholarly journals, option is available in all databases.
Add any additional appropriate terms you find in your search results.
Try your search strings in both words in title and abstract.
You don't need place your synonym search terms each in an individual box as illustrated above but rather all in one separated with "or"s.
Cull relevant research articles from your searches.
Check both cited articles (research that the author cites in the article) for additional research, being sure that it is a research study) and citing articles any research articles that have cited the research studies you have identified on your subject. Google Scholar is a useful tool for that as well as the "Cited References" option in LISS from the More option on its toolbar.
Literature Review: How are Archives or Special Collections Marketing Their Resources and Services?
Note: In addition to everything mentioned for the first search:
can expand the term social media to: social network* or library 2.0 or blog* or wiki* or facebook or flickr or tumblr or youtube, etc.