You get who, how and where, I think.

Deathsense is who died, deathsight is where they died.

Deathsight is superior to Deathsense. It sort of has to be, due to it being an enchant instead of a general skill.

Question about the Fan of Storms artifact... does it also gust people?

Yes. The syntax should be "point fan at ", but there's been bugs with it not working on various new purchases. It took ages for it to get fixed when I just sat back and bugged mine, so if you get one and this happens to you, I recommend emailing artifacts instead.

Is beast trample useful?

For group combat, sure.

Is it possible to 'unshelve' a book from a private/guild bookshelf?

As in, remove it completely so that it won't show up when you browse etc.

Yes, but only the Guild Administrator can do this.

Should I skillflex Tailoring out and pick up Elemental Enchanter/Spellcraft, and try to get it as high as I can, OR save up my credits to buy sheers and Trans Tailoring? Which will make me the most money/be useful?

Forget the shears entirely, trans Tailoring and leave it there.

I'm not entirely convinced that some of the trade skill artifacts pay off in the long run - if they do, it's a pretty damn long run, then.

I dunno, with the fluctuating cost of comms now and double the comms needed, shears seem fare more useful than before.

Not really. Trade artifacts won't pay for themselves, not really. They exist to make your life a bit more convenient, not make you more cash.

My gloves of harvesting have paid for themselves many times over now, I think. They might be the only ones though... With todays prices, gloves of mastery would require you to drain 1600 powerstones, which isn't something done in a hurry.

Gloves of harvesting are one of the few ones I'd list as an exception.

I did a forum search but couldn't find it, even though I know it is somewhere.

What is the player determined (I divine numbers are known) effect of Trans Resilience? And it's lesson based, so Virtuoso should be worth around 35% of the maximum, correct?

It's been a while so it might have changed, but as I remember 10% Resistance was the effect of transcending resilience for damage I believe. I don't know about the the virt part, sorry.

Where would I sell marble?

Give it to the dwarf at the marble station in your chosen mining village.

Pretty sure it was 25% at Trans. There's also a % of poison shrugging, I'm not sure if it's also 25%. And yes, Virt would be ~35% of it, whatever the proportion is.