My random-topic linkspams are hand-coded -- I have a text file where I save links and a little note about the content, then periodically group related ones together and post them in a bunch. (That would obviously be hard to automate.) The weekly/biweekly lists of fanworks are in another text file, added to a template that has series headers and things. I've thought about creating a separate Diigo and using that just to organize my own stuff, but that would make me feel obligated to go back and retroactively tag everything I've already put on the Internet, and that's just not going to happen.

The crossposting was all set up on Diigo's site, and can be sent from there to multiple blogging platforms (so far including LJ, but not DW). It's not very sophisticated; I would like it to automatically post every two weeks, for instance, but the only options are daily, weekly, and semiweekly. But it works well enough for my purposes. Would be great if someone could build on it.