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cannabanana
Google Trends is an interesting feature that allows you to see graphs showing how often particular terms are searched for over time. Absolute figures aren't provided - rather, values are expressed as a percentage of the maximum. But up to five terms (or combinations of terms) can be compared with each other.
Here's one I did for some popular portable vapes:
http://www.google.com.au/trends/exp...flb" + "magic flight"&date=10/2009 40m&cmpt=q
And here's a screencap of it, at the time of writing:
And here's one for some popular plug-ins:
http://www.google.com.au/trends/explore#q="da buddha" + "silver surfer vaporizer" + "silver surfer vape" + "life saber vape" + "life saber vaporiser", "arizer extreme" + "extreme vape" + "extreme vaporizer" + "extreme q", "herbalaire, vapexhale, volcano vaporizer&date=11/2006 75m&cmpt=q
And the screen cap:
You can see which colours correspond to which terms by the list of search items on the left. I included various combinations of likely terms for each vape (eg "arizer extreme" + "extreme vaporiser" + "extreme vape" + "extreme q") to get a more accurate and comprehensive indication of popularity (simply searching for "extreme" isn't going to at all helpful, of course, but there's no ambiguity with "herbalaire"). And in the plug-in one, I combined terms for all of the 7th Floor vapes (DBV + SSV + LSV) into one grand total.
Seems like there might be a bit of a uptick of demand in the vaping market lately, though the Christmas seasonal rush would account for a lot of that.
Here's one I did for some popular portable vapes:
http://www.google.com.au/trends/exp...flb" + "magic flight"&date=10/2009 40m&cmpt=q
And here's a screencap of it, at the time of writing:

And here's one for some popular plug-ins:
http://www.google.com.au/trends/explore#q="da buddha" + "silver surfer vaporizer" + "silver surfer vape" + "life saber vape" + "life saber vaporiser", "arizer extreme" + "extreme vape" + "extreme vaporizer" + "extreme q", "herbalaire, vapexhale, volcano vaporizer&date=11/2006 75m&cmpt=q
And the screen cap:

You can see which colours correspond to which terms by the list of search items on the left. I included various combinations of likely terms for each vape (eg "arizer extreme" + "extreme vaporiser" + "extreme vape" + "extreme q") to get a more accurate and comprehensive indication of popularity (simply searching for "extreme" isn't going to at all helpful, of course, but there's no ambiguity with "herbalaire"). And in the plug-in one, I combined terms for all of the 7th Floor vapes (DBV + SSV + LSV) into one grand total.
Seems like there might be a bit of a uptick of demand in the vaping market lately, though the Christmas seasonal rush would account for a lot of that.