First, you must join
hpjournalswap to view entries or post entries. The only entries non-members can view are the
list of journals that our members will
not trade for anything, and the
entry for asking a moderator for assistance.
There is no template for how to post in the community, however if you have a very large list of journals to swap, the mods ask that you either post it under a LJ cut or as a link to an entry in your own journal. If you are linking to a large list in your journal, not all names need to be HP related, but at least one should have some pertinence to the series/use for those who play in HP RPGs.
Any other questions may be asked here, and good luck and good fun to all the RP'ers making their home on IJ!