I wanna know from all my friends that how long seo will work
for all the websites..

As long as there is enough electricity there will be internet and if there’s internet there will be search engines and if there are search engines there will be SEO (Search Engine Optimization).

However, Google does continue to refine methods to filter out black-hat SEO techniques (SPAM / Abuse).

So, basically short of an apocalyptic event, SEO will still be around for a foreseeable future.

Good Luck!

Thanks, TheWriter