What is the best resolution for website images?

Related questions

1. What is the difference between DPI and PPI?
2. Is 240 dpi high resolution?
3. Is 200 ppi good quality?
4. Is 300 ppi high resolution?
5. What is the resolution of 300 DPI?
6. Which dpi is best for gaming?
7. Is 72 ppi the same as 300 DPI?
8. Is 600 or 1200 dpi better?
9. Does high quality printing use more ink?
10. Is 150 dpi OK for print?

Tags

1. #studio
2. #appear
3. #colored
4. #image
5. #squares
6. #pixels
7. #images
8. #often
9. #holds
10. #ideal
11. #detail
12. #pixelated
13. #fuzzy
14. #resolution
15. #design
16. #clients
17. #72ppi
18. #called
19. #print
20. #screen