the top 5 most popular sites of 2019

Hy guise-: 
today we gonna talk about the site that is essential for every student  and every student should visit that 
it can grow your knowledge and also learn whole thing about any particular topic so let's get started

1- quora : this is the best learning site where you can easily ask any questions and also if you know answer of any question so you can help others to improve his knowledge 
in this site you either grow your intelligence  or help others to improve his brilliance
in this app you got many topics like tech related, science related and many more 
you just have to sign in 
https://www.quora.com

2- Wikipedia: i don't think anyone who does not heard about this app it is the biggest reading and learning site of all time 
whether you can get answer of any questions (Exception are always there) 
in this app you can also  make any project whether its your homework or any think else
because you got every topic here so you should visit here
https://www.wikipedia.org/

3-pdfdrive : if you want to read books but you can't afford to buy from any site so you can visit this site because here you can get almost all books for free 
so you want to read those books so you can visit this site not sign up needed
https://www.pdfdrive.com/


4- linkedin : i know this is a social media 
but with the help of this app you can get number of any company CEO  and talk yo him
in this site you can see only professional persons visit there 
so you can get your job from here 
simply you can post your quality and qualifications  if any body is interested then they can call you so you can sign there also
 https://in.linkedin.com/

5- youtube : i do believe that everyone who is reading this is knowing about youtube
but this blog is for that who doesn't knows about youtube
basically thia is the biggest learning or any categories in video format if you can't understand through simple written text then
you should prefer this 
because there you have a better chance to understand because human mind works in picture format 
so you can easily understand things 
https://m.youtube.com/