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I know that this is a subjective question, but is it worth the discount in price to purchase a refurbished iPad instead of a brand new one? I’ve bought some products used before, and they were like new, but on the other hand, I bought a used LCD monitor and it had a stuck pixel and lots of surface scuffs.

When setting up a home network, how do you determine the best channel setting?

I see anecdotal stories about some creep taking over the webcam of some poor unsuspecting virtuous individual, and then viewing the hapless and unaware victim in what they think is a private setting. I’ve never heard of it happening to anyone I know, so I assume it is a rare occurrence. How could someone actually gain control over your webcam?

You have to use action settings. Just go to Insert>Action Command. Choose Mouse Over and chose the settings you want. 

A lot of devices are MHL compliant. You noted the Sony Tablet, and most new LG, HTC and Samsung tablets/smartphones are as well. On the display side, HDTVs and displays from the majority of major brands support MHL. I found a list of current of MHL enabled displays.

I would say clock speed, which will be felt in almost everything you do, although if you are buying a new machine, the ones with faster CPUs are probably also going to have more cores anyway. 

There was a ton of chatter about the "Facebook Phone" which turned out merely to be a skin/launcher (at least that's how I understand it). Is it actually worth installing if you are a Facebook user?

Well, first off - good luck! It's always exciting to make a career change, and I hope it works out for you. Now your specific questions are outside of my area of expertise, but I would suggest having a look at salary.com and the U.S.

Don't forget, there is one advantage that is unique to Amazon Prime - it means free 2-day shipping on your orders from Amazon. This can essentially make Amazon Prime pay for itself over a year if you do a lot of your shopping through Amazon.

I've seen figures that suggest that about 25% of total internet usage is actually Facebook (not talking bandwidth, the champ there is Netflix). That 25% or so is unavailable to Google, so there is a lot of information that up to this point has not been indexed for searches.

I think K9 Web Protection would be worth trying, especially since it's free to try. It doesn't have all the features of WebWatcher, but it has one thing that you need - it works on iOS. Here is a side by side comparison of the two.