I am the commissioner of an online dynasty and have found that none of the commissioner tools (such as advancing the week) are available through the PC, must all be done through the console.
You can do all your recruiting through the computer, however be warned that a friend of mine in my dynasty said that EA's janky servers caused him to hang up on some recruits, etc., so the PC recruiting isn't inherently flawless.
On the webpage you can also look at ALL the stats for all the user-games, as well as the schedules (and results) for ALL the games. You can also look at the rosters for all the teams. However you can not edit your own depth chart (or any other, obviously).
Here is my online dynasty. We're a few weeks in:
http://www.easports.com/dynasty?_use...5&sku=662A0001