GIF/JPG

GIF- 30 colors, 25% dither, diffusion- 26.25K
GIF- 2 colors, 50% dither, noise- 7.913K
GIF- 2 colors, 85% dither, pattern- 4.67K
GIF- 16 colors, 85% dither, diffusion- 23.91K
GIF- 8 colors, dither 25%, noise- 47.63K
GIF- 16 colors, dither 25%, pattern- 28.76K
GIF- 64 colors, dither 25%, diffusion- 29.98K
GIF- 256 colors, dither 50%, diffusion- 52.07K
JPG- 100%- 84.61K
JPG- 50%- 19.79K
JPG- 25%- 11.55K
JPG- 0%- 6.494K
GIF- 4 colors, dither 25%, diffusion- 14.22K
GIF- 8 colors, dither 50%, noise- 31.3K
GIF- 16 colors, dither 50%, pattern- 48.8K
GIF- 64 colors, dither 71%, diffusion- 72.76K
JPG- 0%- 11.23K
JPG- 25%- 24.72K
JPG- 50%- 44.39K
JPG- 75%- 98.57K
JPG- 0% 11.23K
GIF- 4 colors, dither 50%, diffusion- 19K
GIF- 8 colors, dither 75%, selective- 37.34K
GIF- 16 colors, dither 75%, pattern- 45.31K
GIF- 64 colors, dither 75%, diffusion- 60.76K
JPG- 0%- 5.36K
JPG- 25%- 10.27K
JPG- 50%- 20.53K
JPG- 75%- 91.13K
JPG- 100%- 145.7K

This excersize was very helpful in understanding different sizes. Uploading different jpeg sizes helped me to see what still looks good at a reasonable size....GIFS, however were a lot more fun to play with because when i messed with them, the image was completely transformed.