I personally like to just think of companies that I see regularly and go their websites. It helps me know their mission statements and do good research on the company opposed to just using aggregators. Aggregators are good but they don't have everything.
What sort of companies do you mean? Is this anything from Nike and Apple, or specifically focused on web design and development?
I start with just the big names I can think of so Nike and Apple. I'll check out their websites and most likely Nike might be a type of company that outsources that work and that's ok and I learn and move on. I'll go through the high profile tech companies too. I certainly treated looking for a job like it was a job in and of itself. A lot of companies only list openings on their own site and going to. Big company will help you quickly learn the best practices when you're new to the industry.
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