So how many places should you share with? I would say as many as you can but not at the same time. Look why would someone follow multiple accounts without a value argument? Follow my blog for my work, my tumblr for process, LinkedIn for job skills and networking and please just stay away from my Facebook lol let me be stupid one place on the Internet.
And just remeber if you aren't getting all the updates maybe your ear just isn't down to the ground? We can't be everywhere at once and even when we can be don't dilute your brand by being an over sharer!