I recently read the wonderful Eats, Shoots & Leaves by Lynne Truss, and like many others writers I loved the book on many levels, not the least of which is my own abiding interest in punctuation. I am not alone in blogland for noting Lynne's passing comments about the Internet:

Lynne Truss

This is an exciting time for the written word: it is adapting to the ascendant medium, which happens to be the most immediate, universal, and democratic medium that has ever existed.

Jennifer Garrett

Be kind to your reader. Capitalization and punctuation are the easiest ways to indicate exactly what you're trying to say. It's time for a little tough love, people: Anyone who types in all lowercase needs to be taken out back and beaten. You are not e.e. cummings; you are not being "artistic." You're just too lazy to hit the shift key. If you can't be bothered with the extra keystroke, I can't be bothered to read your site. Don't turn off readers before they even get to your words. (A refusal to capitalize is just one grammar horror that can be spotted at first glance. I can also spot an overuse of the ellipsis at 50 paces. There are two reasons to use an ellipsis (and neither one is because you don't want to write a transition): Use an ellipsis to indicate words omitted from a direct quote or to trail off intriguingly. If neither of these are your intention, try a period. Dot. Full stop. Terminal punctuation can be your friend.)

And in the quest to find a voice, we shouldn't neglect the need to write grammatically, as Garrett points out (although punctuation is not part of grammar, really, but just typesetter conventions that have assumed the rule of law):

Jennifer Garrett

I'm not asking that you be able to name the preterit, imperfect, and subjunctive forms of the verb 'to be.' You don't need to know the 17 reasons to insert a comma into a sentence. (Although, if you did know all 17 reasons, that would be totally hot.) The best way to better grammar: Simplify. If you don't know whether or not to use a colon, a semicolon, or a dash, cut that sentence down! Brevity is the source of wit, after all.