Made this new web application that allows people to search and aggregate the most popular hashtags from Tumblr, Pinterest, and Instagram. Would like feedback and advice on what you think the best way to market and promote this website. For reference here is the Website hashslash.me
it's not a bad idea, the best way to promote would be using social networks of course, since it's the market of your audience. it's also free promotion, since you just need to spend time networking. no need for PPC and I would just wait for word of mouth.