Dave's gives teachers a lot of advice about problems which may occurs between employers such as not being paid on time, which employers are decent which are not, what to look for in a contract, etc.
However, I don't think ESL cafe paints an accurate picture of Korean culture. There are way too many people claiming Koreans to be racist people who absolutely hate foreigners. Also, their complaints about what happens in Korean culture is quite vague and paints a negative stereotype of what Korea actually is. Many of the negative comments I have read give somewhat of a picture of Itaewon on a Friday night with a bunch of drunk people. Yes, I have seen some chaos, but that is mainly due to alcohol.
I have been in Korea over two years and most of the stuff I read about Korean culture on Daves ESL cafe is complete garbage. I don't even read it anymore because it just poisons peoples mind.
As for Pusanweb.com. I would have to look at it more detail.