Ste T.

Yandex is a russian search engine, but it is not only a search engine.
It has news of all kind and a usefull preview tools for video, so you not need to visit the original site to view a video, but you can see it from Yandex.
As all site of this kind you can select the level of protection regarding parental control and kind of images/video (explicit, filtered and so on).
Yandex is available in two languages: English and Russians

What is it PLOS?
All know "Nature" or "Science". PLOS is the same, but it is an open access journal.
What it means? It means that you can read all their articles without pay, without any kind of subscription. It is the science for all.
But who pay the article? In few words the authors. When authors submit their work, and it is accepted, they have to pay a fee for publications.
Any way PLOS is an high level scientific journal, all its articles are peer reviewed (checked by scientist), and it propose article in all field of science.

I used Jetstar several time in Japan for national flight. It is easy to use, very userfriendly and it is clear in every its part. The final ticket price is without any kind of surprise.
In the site you have to selct the country of flight, then start airport and destination, the day and time.
The site suggest you also other solution, and you can find the more cheap or the best for you as time of departure.
The online payment is safe and you have in few minutes your flight tickets.
I advice you to use Jetstar for your next flight... if available!