When the company you've been interning at can't bring you on full time because they don't have enough resources (i.e. money) even though they gave the impression you would be.

Let the job search begin!

A good recommendation from them can be very helpful.

I joined a startup once on the promise I'd get monthly bonuses and health insurance.

1 year later:
3 bonuses, no health insurance. Claimed they were not making money as a company.

Month after that, founders have:
2 oled tvs (1 guy)
R8, Lamborghini, Escalade, Durango (Between 3 of them)
1 House built in new location

I'm like... I only had $100 for my kid on Christmas