Essays / How to start essay about fame gained from the internet (Facebook Founder) [3]

I have to write an 5 paragraph essay about fame gained by the internet and I chose to write it on Mark Zuckerberg the founder of Facebook. I have my 3 body paragraph topics picked out and my thesis statement, I just have no clue how to form the intro/start the essay. Body paragraphs: 1) The developement of Facebook 2) The original intent 3) The negative effects of Facebook. Thesis statement: Although Facebook started and remains a good source of communication it also caused negative psychological effects among users.