As consumers, we can order the beers. Talk nice about them at the bar. Urge our friends to drink them. Leave a nice tip. Compliment the brewers. Suggest you'd like to see more beers like that. Ask how they are made (attention homebrewers: DON'T tell the professional brewer how to lower the gravity and make a better beer). Find out how the brewer might get more flavor even while tossing in less grain.
As reporters, we must write more about these beers. Back in 2000 you waxed delightfully romantic on Pa. beers (when I didn't even ask for session choices): http://www.realbeer.com/edu/abm/tastings/20000710-pa.php
I also think we need to write about more than the beer itself. Discuss the craft of brewing, and brewing low alcohol beers. Talk about how well they work with food (the buzz topic of the 21st century anyway). Mention the great conversations they allow us. Lionize pub/session culture.
Yes. Work to be done, so let's get at it. I'll try to sell some session beer pieces, you guys get to work asking for more session beers. And let's all try to get across the idea of what a session beer is. Remember: session beers mean more time drinking beer, more beer to drink, and more fun beer-driven conversation.
It's all good.