the website I server may be interested in having some post about this jam? Should I communicate somebody first?
Yes, this is the first time of the jam.
About games and interviews feel free to ask.
You can open a Thread in 1BitJam General here: https://itch.io/board/61562/1-bit-jam-general Talkin about this and askin permis to people to host their games or the ones who want be interview,etc... so people interested in that can contact you via message or if you give an email they contact you privately,etc...