Somehow I thought I was the only Scribe struggling with this issue. I mill and mill and mill and only get a couple of Snowfall Inks, even when I use the best herbs. Meanwhile my Ink of the Sea is piling up and I don't know what to do with it. Sure, I could sell my glyphs for cheap, but it pains me to price them for less than the exorbitant herbs cost me. Sadly that's what they're currently going for, Glyphs have become the new uncommon gem cuts of WotLK.
Apparently Blizzard is aware of the ink supply problem and has solved it - they've added an Ink vendor to Dalaran.
You can trade one Ink of the Sea for one of any other ink. It's kind of a rip-off when you think about the low level inks you're swapping for a Northrend ink. But if you're one of those types that doesn't like to packrat every kind of ink for a rainy day, or farm noobie zones, this should be right up your alley. The ink vendor also sells Snowfall Ink, but you'll have to give up 10 Ink of the Sea to buy one. That seems a bit steep to me, I would think 5 would be a more reasonable trade value. But I assume they don't want the markets flooded with Snowfall Ink and the various crafted goodies that are made from it, and I can't blame them for that.
There are also a couple of new recipes from the trainer:
Neither of these will help you cap Inscription, I'm sorry to say. They were both gray to me at 435. I'm not sure why these were added, but I'm sure some Boomkin or Mage would be happy to enlighten me. It's possible that Blizz will continue to drop the occasional glyph on us to augment any tweaks they decide to make to the classes. Personally I'd like to see something a bit more interesting added to Inscription, it seems totally dead to me at this point. But I guess that's a different conversation :)