One of my residents suggested: "I think it'd be super helpful for the residents if you sent out what websites/feeds/resources you use for finding all this [online] stuff"
Sadly there's no simple/easy answer to that -- but a bunch of us wrote a paper appropriately titled "Five Strategies to Effectively Use Online Resources in Emergency Medicine" (free full text).
By no means comprehensive, I think a great starting point:
1) check compilation sites, like LITFL Review and pretty much everything at aliem.com. LIFTL R&R and emlitofnote.com are great for actual studies.
2) use an RSS (instructions); or, I use Twitter as an informal/moderated RSS -- basically make all you online people filter stuff for me.
Probably the most important thing is to:
a) do something, but
b) don't do too much
It's very easy to sign up for a lot of stuff and then get overwhelmed and end up doing nothing, or to get too distracted and not do the most important things (i.e. read a text book).