Making sure a PM on the product reads your blog post isn't about optimising the title and having buzzwords like graduate. Think about being in the PM's shoes and where you would be looking for coverage and posts and so on on your product.

Hint: Writing a cool, insightful blog post, teardown or even nifty mashup (youtube instant?) that appeals to both the HN community as well as being hand crafted to subliminally read 'Please hire me, Google' would more than get you noticed.

The premise in the main post is very sound. If you want a product job at Google, put yourself in the shoes and start thinking product.