Ask HN: How do you allocate equity in a startup?

My site is in the early stage of being established. I've launched private beta and have my first paying customers. To expand I know I'll need to bring more people on board and seek further help from VC's. My question is this, how would I allocate equity when bringing people on board? I've invested $150k of personal capital and worked for 9 months to get it to this stage.