Just to clarify, yes, there are several different forms of Send To Kindle
http://www.amazon.com/gp/sendtokindle
I use the desktop version to send MOBI files to my KK, PW, and Fire, and store in the cloud, that way the file can be synched between devices.
I use the browser version for recipes, and this week in particular, reviews of a certain TV show from Sunday evening that generated a heck o' a lot of blogtime.