They happened to be the first ones I found, but since you insist and can't seem to do your own research

http://www.engadget.com/2015/01/21/when-did-apple-become-the-boring-one/
http://seekingalpha.com/article/3135906-microsoft-is-cool-again
http://www.theverge.com/2015/3/2/8134603/microsoft-is-cool-again
http://www.usatoday.com/story/tech/2015/01/21/is-microsoft-cool-again-big-tech-push/22115289/
http://www.realcleartechnology.com/2015/02/03/microsoft_is_cool_again_25452.html
http://ericsink.com/entries/microsoft_loves_developers.html (I wasn't going to do a personal blog, but Eric Sink is well respected, so it's here)
https://www.bostonglobe.com/business/2015/05/07/microsoft-striving-cool-again/unsEAWhOLcCqMmFgL8XcnO/story.html
http://www.zdnet.com/article/re-evaluating-steve-ballmer-satya-nadella-isnt-the-only-reason-microsoft-is-cool-again/#!
http://www.mobilegeeks.com/windows-10-microsoft-cool/


>And 2013 is the newest one you can find - two years ago?
>
>Look, MS has a very good product with Azure - but it's not dissimilar to other offerings. Sharepoint, I consider a good product too. But again I can do much of the same things with other products. So what are they offering that is taking the industry over. Let's hope windows 10 does not fall on it face.
>
>Johnf