STUFF YOU SHOULD USE
For high quality stock photos
This recommendation is a no-brainer. Unsplash is a huge collection of well-organized, searchable, very high quality photos of every subject you can think of.
And here’s the kicker… all of the photos (ALL OF THEM) are licensed under Creative Commons Zero. This means you can use them (and alter them) in any way you like, for any purpose (including commercial use), no questions asked, FREE.
This is a great resource for any kind of media for your startup (presentations, printed materials, websites, social media, etc.) AND, Unsplash just released a new API today that allows anyone with a modicum of coding experience to integrate their library directly into any app or other software you might be building. Fantastic.