I think using social media as a gateway to introduce your site onine is a good idea. You have a ready community and let us not discount the potential of more exposure through sharing (with other online communities through your friends). My recent post Creating A Logo For Your Ecommerce Store
Using social media for building traffic to yours ecommerce site is a very good idea. Social media right now such as facebook, tweeter and other are being recognized by search engine and it is something that we should take advantage, My recent post GoECart Review
Yes I would have to agree with what others have stated, but it is good as reminder for people to remember the basics. My recent post Living in Google’s World
great post, but all points are common which you have mentioned.try to put different/uncommon things or techniques.
I agree with you on these but those profiles or groups need regular work to have success in your Social Media Planning for long term goals and accurate measurement needs from time to time to make sure that you are going right direction