There have been many reports on the different media consumption habits of each generation, and how you need to take that into account when planning on how you're going to reach your audience, but there's fewer on how, exactly, each generation is different.
One of the most difficult elements of this is that the Milennial generation, the one that every brand's so keen to reach, is huge. Millennials (those born between 1981 and 2004) are now the largest generation in America, covering a wide spectrum of varying people - too wide, by most accounts, to actually be used as a demographic divider.
In practical terms, it makes more sense to separate this group into Gen Y (1981-1999) and Gen Z (After 2000), which is more likely to be indicative of habitual behavior - which is what Hand Made Writings have done with this new infographic, examining the key content habits and behaviors of the different generations online, based on various research reports and studies.
And while there are still some wide generalizations implied by the data - and the only true way to know your audience habits and preferences is to study your own audience analytics - the insights presented do provide some important considerations worthy of factoring into your plans and testing.