Wow, this is going to be a massive weekend! Just found out that this year happily once more a live stream featuring a lot of the bands playing at Rock am Ring 2014 has been set up for all those who cannot be there.
You can find the stream as well as all updated info on bands and broadcasting times at this location.
If you're having problems with the stream like I had this evening (but happily found this alternative plus legal site) just go over to this place, hope it works like it did for me. Maiden was great, enjoyed the title-track from Seventh Son Of A Seventh Son so much. Added Metallica since they are set up for streaming on Sunday, hope it will stay this way. (all bands/times are subject to change as the owners of the stream wrote on their site)
As for now the timetable lists the following bands along with times (only internet livestream bands are listed, there is more stuff that is broadcasted through a german TV channel called Eins Plus that can be found at this point .)
21h Iron Maiden
22:20h Kings of Leon
20:15h Heaven shall burn
22:55h Linkin Park
20:05h Avenged Sevenfold
21:25h Alter Bridge or Milky Chance (tbc)