It really depends on what facet of business you think she'd be interested in.
To be honest I think better than any specific business resource out there would be to just get her on the path to building the core skills she'll use later on in life. She's already got that started with her vending business which is great. I think pushing her towards taking on some school activities may be great too. Things where she can help organize events and fundraisers and really contribute to a group.
As for my favorite books on business I would suggest for a 13 year old:
"Death by Meeting" The author describes a fictional company that is terrible at conducting meetings until the main character comes and helps address the issues. I know she's not really running meetings at the moment so this may be of less use to her until she has others working along side her. http://www.amazon.com/gp/product/0787968056
I also agree that "How to Win Friends and Influence People" is an excellent book. I grew up with social anxiety disorder and it was one of the books that really broke me out of my shell and gave me the confidence to really push past it. http://www.amazon.com/gp/product/0671723650
Another book I found pretty interesting was "Win the Crowd." While not a 'business' book, per se, it goes into how to really grab your audience's attention and hold it.
http://www.amazon.com/gp/product/0060742054
Lastly "Secrets of Powers Negotiating" is an interesting book I'd suggest she take a look at. There are endless applications to negotiation in business from sales to even negotiating your first salary.
http://www.amazon.com/Secrets-Power-Negotiating-15th-Anniver...
This is only partly related but just a heads up some courts have found TOS agreements illusionary in the past for including clauses that mention they can be altered at any time without the user's consent. Some courts may throw out the clause, a section of the TOS, or even the entire TOS as a result.
Her lack of trust with their HR department worries me more than any silly restriction on the candidates they hire. I mean if she's going to sit around and personally review every single person that comes to apply at Yahoo then, yeah, she better restrict the number of recruits reaching her. By forcing this restriction she's upping the average quality of the people reaching her and lowering the number of candidates she needs to toss out.
I'd imagine once she felt the HR department was capable of hiring the type of employee she personally finds to be exceeding she'll likely consider removing this restriction in favor of having those candidates take an active part in the hiring process. Also with her HR department trained on what candidates she considers good it'll make it harder for them going forward to settle on someone who fits the position but doesn't fit into Mayer's vision.
Who knows though -- I think it's a dumb idea but I'm also not the CEO of Yahoo with whatever knowledge she has on hand to justify this as an area of concern.
Yeah I use Amazon Prime for all of my renting as well...
It's very easy to get the movies on my xbox, they cost about half as much as they would on itunes to rent, and they have a much better selection of movies I can see than Netflix since I can rent the ones I'm actually interested in seeing.
It appears to be just an issue related to the rollout of timeline and people freaking out.
I joined in 2004 and remember how people always just wrote on each others walls myself (if you were an early user you probably also remember that people would have full conversations back to back on each others walls as you couldn't leave comments on wall posts). It's probably just a matter of people not recalling this was how Facebook used to behave.
It looks like homakov had a little fun with it (the guy who griefed github a bit half a year ago with their whitelisted attributes vulnerability and got the rails core team to put whitelisting on by default).
If you check out that review it shows that the product definitely needs to mature. I can't see the wacom one being used for professional purposes until they up the accuracy. I was going to buy one for my finance for her birthday (she has a cintiq but wanted something for the go) but decided it wasn't worth it.
On top of that inkling requires that device to help read from the paper which limits its usefulness some (for me at least).
Hopefully they improve on it because it's definitely an interesting approach to this problem.
Illuminating video. Thanks! That's pretty condemning, inaccurate enough that I won't even consider buying it :/ It's too bad, because otherwise Wacom seems to make good stuff.
I've worked in/with security along these lines for a very long time. This CTF (particularly level 8) has been some of the most difficult stuff I've ever done. Thanks to Stripe for putting this together; if I wasn't already a customer, I absolutely would be now!
Here's a link to the filezilla forums where the dev team appears to be justifying its use: https://forum.filezilla-project.org/viewtopic.php?f=2&t=3024...
http://sourceforge.net/blog/today-we-offer-devshare-beta-a-s...
http://sourceforge.net/devshare/why