Why not just say "linking"? It's really not limited to "make a link with HTML" the way you're implying. There are definitions and norms here, just the way there are on Tumblr. It feels like you're trying to force Tumblr norms here, rather than trying to translate what might work, or picking up DW norms. There's stuff you can do on Tumblr that just won't work here. And if you keep using "reblog/repost" to mean "link to," you're really going to just confuse and alienate most DW users.