Hi Susan,
As an older person who grew up familiar with computers as huge wall pieces in sci fi movies, I feel your pain.
I've managed to use social media effectively. I think what works is to have a long range plan. here is my blog
http://thebeautyyoulove.blogspot.com/I wrote in it for 2 years without generating many sales from it. Then other big blogs, like Handmadeology and Apartment Therapy, found me through my blog, and those contacts paid off handsomely.
I've also gotten tons of heartfelt thanks, and even unsolicited gifts, from people who found something useful on my blog. It lifts my spirits to know that i've sparked a creative fire or 2; you just can't put a price tag on that.
Here's my Facebook fanpage
http://www.facebook.com/LeeWolfePotteryIt is less than a month old, and has already generated over $200 in sales. I use it as a way to interact with avid buyers and collectors of my work, some other artisan friends, and increasingly, people I've never heard of before who just happen to like the photos and conversation.
Facebook is also highly useful as a way to gauge the market potential of new designs. When i've posted new pieces and asked who likes the glazes, or what other colors might be desirable, i've been able to get lots of valuable feedback. I love how instant it is. It's like being able to invite other potters and buyers into my studio any time I want to give me suggestions and encouragement.
So, while my readership and Fandom is relatively small, it is rewarding me very well for the time I put into it. I'm quite happy with these results.