Sure, but the article is about 'unfriending' and finding out why unfriended you and why. If the spouse didn't notice it's the new lover that is allowed as a 'friend', it's unlikely that this spouse will know who this person is. So if this new lover unfriends the spouse, not much will become clear.

You have a point that this is a possible, even commonly used strategy. For example, there is a old guy who hates my guts. I'm fairly sure we follows me on youTube, because I have posted a video of him flying way to low over our house. Then again, it's still unlikely that he will ever 'unfollow' me.

Agreed, but that's something you already know. You don't need the online tools from the article to figure it out.

.. doesn't 'friend' you on Facebook in the first place.

Flash is not that 'closed'. Anyone may generated .swf files without paying Adobe. They are not very popular but alternatives exist. I remember a certain Ming project http://www.libming.org/

I'm sorry but I live in Europe and these fugures seem quite optimistic, to put it mildly. Do you have data to back this up?

Have it your way but I would bet on Google.

Darn! [skims the article] Wait a minute, I'm talking about page hits, not what investors think it's worth.

Come on, how many of those accounts are updated regularly? If they were all that active, FB would be Google.

Facebook is the next bubble. There is just too much money investors are trying to put away. FB seems a good bet for them. There will be more FBs in the near future.

The human eye is not fantastic, compared to some animals, but even out of focus movements in the corner of your eye are impossible to miss. Seriously, try it. You can focus soon enough once you have noticed the movement. It's not necessary to have the whole picture in focus, the center will do. About war: You are right that there might not be war all the time, but you never know when an enemy might strike. Just one successful hit with a rock or bite from a snake you didn't see coming, can kill you. Maybe you only need that safety belt only once in your life, it can still make a 100% difference in your time-path between you reaching 85 or you getting smashed into your own dashboard at 25.

Because in a primitive, hostile environment, the main thing is to see the enemy / victim coming. That's one of the reasons why people keep watching anything that moves above static parts. That it also changes color.. well.. big deal. Noticing it moving is much more important.

You can't look at the email headers on an iPhone, the mail app has no option for it.

I was at a friends house last weekend and he demonstrated his new Vaio laptop, which responded exactly like the apparatus in this video. Only it used the webcam, I guess. Like in the video, it doesn't work flawlessly, you easily gesture to fast for it.