If you need additional resources checkout the Research Guide for other subjects.
Here are a few databases to begin your research:
Search Google Scholar from the USC Libraries resources which includes the library proxy to access the articles.
Once you have identified your topic, check to see if it is too specific, if it is, work toward a general focus. This will help you generate a list of keywords, or concepts related to your topic.
Use AND, OR, NOT to connect your phrases/keywords
to locate both smartphones AND travel
to locate either word U.S. OR United States
to locate (the first word) vacation NOT trip
* truncation symbol
travel* travels, travelers, traveling, traveled