bu arada,

  1. On another note,
  2. Adverb Meantime,
meanwhile
among other things
incidentally Adverb
in the meantime
by the by Adverb
by the bye Adverb
by the way
Speaking of which, ... Adverb
On an unrelated topic, ... Adverb
One more thing, ...
in the mean time
if nothing intervenes