this is quite possible the dumbest thing i have written but here are the facts that I have gathered over the past months. I cannot source my information, but i will not bullshit anyone here.
US Traffic:
Not everyone is on daily ( i had the webmaster mentality imposed onto surfers)
Traffic is lower after friday afternoon and it stays low until monday morning.
My google and yahoo radar depics that less searches are made on the weekend (my observations.)
As for summer slowdown, i have yet seen it, but since weather and holidays plays a big factor in online usage, you can be sure that surfers surf less during those days. ( less surfing does not equal less sales IMO)
My opinion only folks, results may vary, enjoy
