I fixed that, the link is updated. 

for the gremryhn how did you get so many spider scrolls?

Updated the map, but this one is similar, I think it was an older version before the final map of Skyrim was made, this one is from the Wiki. :S So yeah, it's only there to illustrate Skyrim, other maps even the more modern ones don't look as good. 

Spider Scrolls has all the info. 

Here is a little tip from that page:

"In most cases, three spiders will be created from a successful combination; however, the amount is doubled if a gem of flawless quality is used instead of a standard gem."

So as a pickpocketing thief, use cash to get Gems which are Flawless then make Spiders, you can churn out 6 at a time. 

thanks TZ