Here are a few tips on where to find jobs -
1. Online -
Most companies take the electronic route these days. So, if you have a company in mind you would like to work at go on their website and search for the "careers" or "jobs" link. Some even allow you to create a profile and save your resume to apply for several positions.
Department of Labor - All states have one. They will have online resources for job searching. Go on the website and register. Registering allows you to upload your resume and personal information such as SSN and EAD number on a secure website. Also lots of reliable employers post jobs daily, so your search is more likely going to be successful.
Other websites - indeed.com, craigslist (BE VERY CAREFUL on here though most posts are scams so NEVER provide your personal information), careerbuilding.com
2. Old Fashion Way-
Go to businesses and ask for job applications. Make sure to look presentable and professional. First impressions are important.
Ask relatives and friends if they know of anyone hiring. You are more likely to get hired if someone you know works there already
Newspaper ads
That is all I can think of for now... Please feel free to add more information