I would have to say your in a much different place than these guys were. The internet, open source (the amount of it at least), the FOTM chat client...
If you want to talk shop you are more than welcome to contribute to one of the open source projects out there (I'm sure you have a few in the stack). I will say it isn't the same as having a partner in crime at work, but you can get your self exposed to new ideas and thinking if you so choose!
Oh totally, it's a completely different world. I mean look at Stackoverflow. Literally one google search can solve even the more complex problems a programmer might encounter. Like you said, github, meetups, skype...just reading through source code on github helps me immensely.
If you want to talk shop you are more than welcome to contribute to one of the open source projects out there (I'm sure you have a few in the stack). I will say it isn't the same as having a partner in crime at work, but you can get your self exposed to new ideas and thinking if you so choose!