Some tips on social engagement -

http://searchengineland.com/social-engagement-making-content-interactive-37469

If you got a bad user review - what do you do to combat it.
http://www.clickz.com/3639717

Some twitter feeds you can learn from.
http://www.wdfm.com/publish/twitter_feeds_sales_lead_gen/index.htm

Enjoy your Thursday.