Travel blogs are almost often essential in planning budget trips anywhere. Reading other travelers' experiences and opinions are so organic as it can be.
If you have access to the internet, you could always bookmark the article and go to the website again. But more often than not, we don't want to use up data to access the internet. And you might not even have a cell phone plan for the country you are visiting. Bringing travel books, or hard copy of articles doesn't help budget travelers to pack light, since paper printouts are more cumbersome and not environment friendly.
Besides, just reading through the article again will remind you of the places you wanted to visit — that well-reviewed restaurant or that popular beach — but you’d still have to stop and look for directions to find it.