I know this might seem childish but here me out.
On my supra forum we had this option and I actually liked it. You can let certain thread updates be posted to Facebook. This allowed me to update my build on supra mania and en share it on Facebook for my other friends who aren't on the site but still curious to see.
Would be a nice feature I think. Ten I'd only have to upload pictures and post them here. This would be handy for my build thread as well as trip reports so my friends could see photos taken from other TW members too.
Just a thought.