Today came a message by mail to my e-mail address. It was caught in the spam filter, but my spam filter is very strict. This was the message (without the hyperlinks):

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Q u o t e:
We would like to get your feedback as someone who purchased the BlizzCon® 2009 Live Stream. We invite you to participate in an online survey where your responses will help us determine offerings for future BlizzCon live streams. You must be 13 years of age or older to fill out the questionnaire. The entire survey is expected to take about 5 minutes to complete.

If you would like to participate, click on the following link:

<url removed, domain was "survey.otxresearch.com", and contained no @-characters (common phishing trick)>

We value your opinions highly and hope you'll make the time to participate. If you have any questions, you may contact us at blizsurvey@blizzard.com.

We look forward to your response.

Sincerely,

Blizzard Entertainment Research

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If you no longer wish to receive promotional emails from Blizzard, visit this link: http://email.blizzard.com/opt-out/survey.html/Key-<alphanumerical code removed>

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Message-Id: <<numerical code removed>@email.blizzard.com>

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I would like to verify this mail. I have some knowledge of internet security, and common phishing with URLs. These URLs do not contain hidden domains. The link they want me to follow though is not a site of Blizzard (and not one of Rayv as I remember).
I'd like to fill in the survey if I may, but I don't trust the website well. Do not download anything connected with World of Warcraft unless it is:
- Well known to be a safe website.
- One of Blizzard's websites (fits in with the above).
- Inactive content, like .txt.
- Made by someone I know and trust.
This website doesn't fit in one of those categories.

This email is legitimate and does come from us.

Thanks!

Daliniya