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If I were in your situation, I would probably do exactly as you say you're going to do. EDIT: maybe using Google Analytics or Google Tag Manager to verify the account would let you take off the part of reaching out to the IT guys, but if they work fast enough it's the same.

Hi Aimee! Thanks for reporting and the question. The error you received generally happens when we have a large number of requests come in at the same time (so server load issues). This doesn't happen often and we are working to limit the number of times this happens, but I can understand it being a little annoying when it does. I just reviewed the campaign in question and was able to get the historical analysis to load. Can you try to load the page again? If it doesn't work for you this time, please send a ticket into help[at]moz.com so we can look into this further for you. Hopefully it does work though! Let me know if there's anything else I can help you with and hope you have a great day Best, Sam Moz Helpster

Since you are using ccTLD's I do not believe you have to use rel=canon to the .com. If you have three distinct sites, the way you have the alternate here is correct. In the .com you would set geotargeting in WMT. Go to site configuration, click settings, choose geographic target and set for the US. This will insure that the .com is for U.S. and prevent confusion since you have the other two ccTLD's.  You won't have duped content issues this way. As to choosing the rel=canon, you could do it each for its own domain, or if you want to share content, etc. you could do a cross domain rel=canon.

Thank you for your responses. I did get a weird feeling about canonicalizing my .co.uk and .ca sites into my .com site. I leave the canonical tag on each country specific TLD, referencing the canonical URL of the page within each TLD site.

That's a pretty comprehensive prompt for most skilled writers I think. Tone of voice kind of covers it, but writing style might be an added factor: conversational, encyclopedic, persuasive, etc. Here's a few other SEOMoz resources you should check out: Q&A: What Should I Look For When Hiring a Blogger YouMoz: How to Outsource Content That's Worth Reading (Be sure to take a look at the 2nd comment by iPullRank) Whiteboard Friday: Outsourcing Content Creation