Jong, I've never seen that chart...pretty neat? Where did you get that info?
Neat chart, buddy

. Now I would assume the absorption amount is for a, roughly, 30 minute use. Similar to Swedish Match studies. Am I correct or have I missed something Stubby tried to get through to me? And how do you make those cool charts

?
I guess I should have explained that table a little bit, rather than just putting a weak disclaimer to it.
It's all info I've gleaned over the months from various sources, as well as some personal impressions.
OK, some notes:
The "Product" column:
• The cigarette and the snus variations are what I considered one "dose". I could've titled the column "Dosage", but that sounds a bit too... um, druggy for me (or maybe just too medical).
• The ecig dose of 0.5 ml is a just a guesstimate of an average vaping session. Obviously, that varies quite a bit from person to person or from time to time. The 11 mg and 18 mg strengths I included because that's what Telsie, the OP, said she (or he?) used.
The "Nic Present" column:
• I've seen a fairly wide range quoted for different brands of cigarette, so I included most of the whole range here, gotten mostly from gray matter random access memory.

• For the snus, I just went by the manufacturer's/seller's ratings.
• For ecigs, it's just a little arithmetic, assuming the 11 mg and 18 mg ratings were accurate.
The "Nic Actually Absorbed" column:
• Although this column includes numbers, and that makes it seem like hard facts, it isn't quite. For one thing, it's a quantity dependent on a lot of factors, like alkalinity of an individual's mouth and the product used, individual metabolism, and other physiological and environmental factors a list of which I've actually never seen in any one place.
• In each case, I estimated based on the way and the length of time each product is
usually used, also taking into account how much time
usually elapses between usages. This goes for the "Absorption Rate" column, too.
• I believe the cigarette's range of total nicotine absorption is fairly generally known: I usually see about 1 mg being quoted.
• Snus estimates are based on 10% to 20% absorption. This I got from Swedish Match's site.
• The amounts absorbed from ecig vapor are actually just estimates of 20% to 40% absorption, based on my own somewhat non-scientifically (that means intuitively) derived combination of 1) a couple studies I read about here on ECF several months ago, and 2) DVap's estimates as shown on his ECF blog. These for me, at least empirically, seem to add up well.
• One last note about this column: "absorption" seems a kinda sloppy terminology to me, only because what we are really interested in is whether the body and brain "cares" about whatever is being absorbed, "knows" what to do with it, and what it does with it provides the expected benefit. I used the word because that's what most people seem to use, and at least it differentiates itself from "delivery".
The "Nic Absorption Rate (and Feel)" column:
• This is based on a series of graphic time-based charts from the Swedish Match site that show nicotine blood plasma levels over 1 to 2 hours after using the products. The charts do not include ecigs, so the words "Somewhere in between cig and snus" subjectively describes my own experience of the shape of the "attack-decay-sustain" curve over time (In case the musical people reading this are wondering, the "release" phase of the "attack-decay-sustain-release" pattern is not shown in these charts.)
• I use words in this column to subjectively describe
just the shapes in the charts (but
not the comparative levels -- that's what the "Nic Actually Absorbed" column is for. The shapes in the charts match up well to my own experience, so I added "(and Feel)" to the column head.
The "MAOI (bio)available" column:
• Well, I think many of us know by now whether these things offer MAOIs that the body and brain can and does actually use. I only put a "yes" or a "no" in this column, because what we don't yet know is "how much?" My answer, for myself, with snus anyway, is "enough"!
As to how to make these tables, I just use a text editor, a favorite monospace font, and a bunch of spaces. When you reply or post here, if you click on "CODE" (the button looks like "#"), it should show up in a post in anyone else's favorite monospace font, and automatically with a scrollbar if necessary to allow for long lines/rows.
...Whew.
Well, now you can see that I really did steal most of it.
I had a vague feeling when I posted that table, it was going to lead me to have to do some work. Man, I really hate work, but thanks for making me do it anyway. It gives me some good practice in explaining myself. It's been many years since I was in school and the teacher would give me a bad grade because I "didn't show my work", even while acknowledging that my answers were correct. I have a lot of tables here on my computer about all sorts of stuff that I've put together this way, and have gotten very accustomed to never having to ask myself "where did you get that info?". I just know that I can trust myself to have gotten it from what I considered reasonably reliable sources. The trouble with that is, when I share any of it, I can't very well expect others to have that same trust.
Thus this post.
But again, thanks for making me do it!
--John