Blog entries on different pages

I just built a simple website for people to submit ad entries for collaborations and wasn’t sure I wanted blog entries but now I realize I probably want to enter the ad entries as blog entries so that people can tweet them and facebook them individually via the plugin. What I do now is I manually enter them into a menu page depending on their category. This will not enable people to like them individually on facebook and the search function will not be able to locate the ad individually once I get more ads.

I tried creating a fake blog entry to see if I could put it in one of the pages but it just completely disappeared from the site and can only be reached by entering its url.

The front page: https://startaupp.nu
An ad in one of the pages off the menu: https://startaupp.nu/foretag/
The blog entry: https://startaupp.nu/2014/08/16/n/

I hope this makes sense even though you don’t speak swedish. I am completely new at this so if anything is stupid please see past that ??

So:
I can’t place blog entries in the different pages? Where do I choose where they go? I do not want a regular blog
How do I enter blog entries into the different menu pages?
If not blog entries what else?

Theme is “Attractive”