G4 is supposedly having (semi)live coverage of E3. I think it's on June 1st...could be totally wrong about the date but I know I saw an ad on TV.
Otherwise, look to te big sites (gamespot, ign). They ALWAYS stream the major keynotes and such. Also, some of the more niche sites tendto have good impressions. Basically, in this day and age, don't worry about finding E3 coverage.
I'd worry a hell of a lot more about finding out what's going on if it was still the year 2000 or earlier. Ah, the 80s and 90s, when you found out about new games in magazines and catalogs.
/nostalgia