Change of home feed for already visited users

[hackerkid]

in the feed, have a button for asking the user do you like this category or not, if he clicks the make category favorite, store it using cookies in browser, and display more frequently from this category.
initially you can show in side bar some hand picked general categores picked by you, if they favorite some, store them too in their cookies and show from them more frequently, it will increase the likablility of the website, as i am spending time in learning more about a known topic rather than staring at a complete unknown topic.

Suggestion from @spharish on facebook

[hackerkid]

I am planning to add a database so that the categories should not have to be stored in cookies. But for people who does not prefer logging in this would be a good addon. I would be busy working on the database so help would be appreciated if someone can implement the above suggestion.

[SaptakS]

But storing it in cookies is not a good and permanent solution as if the user reinstalls the browser then his info will be lost. Though if he/she doesnt want to login then it would be fine for them. But it is not a good process of storage I feel.
Moreover if you want to implement from both database and cookies, you have to put a check for both.
And localStorage is considered to be more secure. So do you want to go with cookies or localStorage?

[hackerkid]

@SaptakS Local storage is perfectly fine.