Search Engine Marketing
First of all, let's look at the reasons why you might want to choose search engine marketing over social media marketing. It's simple; More People Look for Business on Search. Think about your own habits. Whenever you are looking for something, from an air conditioning repair company to a zumba instructor, where do you go first? Most likely, you will go to a search engine - Google, Yahoo, Bing, Ask, AOL, Blekko, or one of the many other options available.
When it comes to search engines, while the numbers might not be exact, you have a lot of great tools to use in your research of what people are searching for. Google AdWords Keyword Tool is a great start in this process. While "pet supplies" may not actually get an exact one million searches per month, you will know that "pet supplies" is a more popular keyword phrase over "pet supply" that comes in at only 368,000 monthly searches.
And finally if you can't make it to the top of organic search results, you can always buy your way into the sponsored links section of Google using Google AdWords.