i expected instagram to be bigger

doesn't think Snap Chat should count.

it shouldn't count but it is impressive to see its size.

stitch: instagram is gigantic, it's just that facebook is almost unimaginably huge.

copy facebook is literally a photo dump, you load albums. People are more discriminating in instagram for now.

Picasa doesn't figure in there at all.

What kind of unit is MM ? Mega-millions? Uppercase millimeters?

according to wikipedia, MM refers to one million in "some financial contexts".

yep, MM is a typical abbreviation for million.