I'm always willing to beta for people, and I usually manage to get back to the author within three days (or send a nice apology saying why I can't do it sooner).
I like reading all stories, though I prefer pre-coupledom stories just because there's more conflict between Lois and Clark.
When I'm beta-ing, my responses usually tend to be more feedback on the plot, characterisation and the feel of the story, rather than nitpicking over spelling and grammar (though I'll always point out anything I spot that needs fixing).
I don't mind taking on the role of grammar-nazi for someone who doesn't have English as their first language though.
*smiles*
Just so long as the author lets me know what they expect from me as a beta-reader, I don't mind helping them out.
My email address is in my profile.
