Same Survey Different Pay?

A quick note to say I have noticed that I received the same survey from 2 different companies, on two different days, for two different pay amounts! One was $5.00 and the other $7.50! Hmmm.
Also, Global Test Market seems to get me to answer pages and pages of a survey, before disqualifying me...doesn't seem right!
I seem to be getting higher paying surveys and lots of them right now! Almost ready to cash out with 3 different companies...My Survey.ca and Surveyhead and Web Perspectives!

Top Survey Sites for Canadians in my opinion

So far I have been most impressed with the following survey companies:
Web Perspectives- surveys are fairly regular and are usually at least 150 points($1.50)
My Survey or TNS regular surveys and decent pay(I've been paid 500 points for one survey)
Lightspeed pays at least 100 points per survey
Surveyhead I have over $30 pending and surveys are $1 or more and quite regular, though I don't often qualify.
Global Test Market this company usually sends point surveys starting at 35 market points($1.75), I am at 235 market points, it takes 1000 to cash out, but that's $50.
Which companies are your favorite? Making any money? Which ones do you like that I haven't mentioned?

Survey Review: New Offers Club

Here's a neat company. It's Canadian. I can't find any reference to it on Survey Police, but that could be that Survey Police is American? So, what's good about this company? Well first off there are 4 types of survey companies.
1.Straight surveys...sites like Global Test Market
2.Offer sites, sites that are about getting you to look at and hopefully buy things..sites like Snap Dollars
3.Sites that offer both offers and surveys...sites like Fat Cat Rewards
4.Sites that offer offers and click emails..sites like New Offers Club
1.When you click on New Offers Club and sign up you get $25.
2.Cash out is at $50 and paid by Pay Pal
3. Emails are sent to you and you must click on the ads and stay on the site for at least one minute
4.If you refer someone and they sign up and make $50 you get $10
Now, I haven't tried to cash out yet so I'll let you know when I do.
My balance is $27.45 after doing 3 click emails. The last 2 days I have had an email with 3 clicks totally .95! Not bad for a click! What's your experience?

Survey Review Global Test Market

When looking at the your free survey forum I found people talking about getting paid by Survey Spot. I googled it and found a link. When I clicked on it it told me it wasn't available for my area.It is USA only. I was redirected and ended up on the site Global test Market. I signed up in only a minute or 2 and was sent a confirmation link. When I confirmed I was automatically given my first survey which took about 3 minutes tops. Then I received another short survey and several opportunities to update my personal profile.They are registered with the BBB.

This is what they say about themselves.

What rewards can I earn for taking online surveys?
Each invitation will tell you how many MarketPoints or Sweepstakes entries you will earn for completing the survey, or for participating but not qualifying for it. The amount of the reward will vary depending on two factors:
The urgency of the online survey -- more urgent surveys will offer higher incentives

The length of the online survey -- the more time required on your part, the larger the reward

MarketPoints These are rewards you will receive for most surveys when you qualify and complete them. Accumulate 1000 of these points and you can trade them in for $50 U.S. in cash (or the equivalent in your local currency if available).

Profile Surveys These surveys help us learn more about your background, habits, and hobbies. This confidential information enables us to send you more surveys that you qualify for and enjoy. Plus, you'll get a small reward just for telling us about yourself. Pretty cool, huh? You can find your Profile Surveys on your Surveys page on the GlobalTestMarket website.

Here is a survey I was offered.

This survey takes about 5 minutes.Your reward for completing it: 3 Daily and 3 Monthly cash sweepstakes entries