As all of us are familiar with the different journal ranking systems and requirement conditions, in many cases we meet different kind of fees, charges for publishing our researches. Usually only the submitting and the previewing cost US$ 50-250, which is non-refundable and the paper may be rejected by the editors without being sent for review. Others introduce fees for the publishing US$ 500 -1000 (extra fees for colour graphs, maps etc. or for appeals against a Chief Editor's decision). For good English, they offer some links for the grammar review: US$ 100-200. Besides all of this, they employ embargo for 12-36 months, and ask US$ 600-2500 for open access. I think these fees sometimes unreasonable, so it is hard not to find the business factor behind them.