Lurking

Lurk \Lurk\ (l[^u]rk), v. i. [imp. & p. p. {Lurked} (l[^u]rkt);
   p. pr. & vb. n. {Lurking}.] [OE. lurken, lorken, prob. a dim.
   from the source of E. lower to frown. See {Lower}, and cf.
   {Lurch}, a sudden roll, {Lurch} to lurk.]
   1. To lie hidden; to lie in wait.
      [1913 Webster]

            Like wild beasts, lurking in loathsome den.
                                                  --Spenser.
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            Let us . . . lurk privily for the innocent. --Prov.
                                                  i. 11.
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   2. To keep out of sight.
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            The defendant lurks and wanders about in Berks.
                                                  --Blackstone.
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lurking
lurk
lurker

   <messaging, jargon> The activity of one of the "silent
   majority" in a electronic forum such as {Usenet}; posting
   occasionally or not at all but reading the group's postings
   regularly.  This term is not pejorative and indeed is casually
   used reflexively: "Oh, I'm just lurking".  Often used in "the
   lurkers", the hypothetical audience for the group's
   {flamage}-emitting regulars.

   Lurking and reading the {FAQ} are recommended {netiquette} for
   beginners who need to learn the history and practises of the
   group before posting.

   (1997-06-14)
    

81 Moby Thesaurus words for "lurking":
      abeyant, about to be, already in sight, approaching, at hand,
      between the lines, brewing, close, close at hand, coming, covert,
      cryptic, delitescent, doggo, dormant, esoteric, forthcoming,
      furtive, future, gathering, going to happen, hibernating, hidden,
      hidden out, immediate, imminent, impendent, impending, in ambush,
      in danger imminent, in hiding, in prospect, in reserve, in store,
      in the cards, in the offing, in the wind, in the wings, in view,
      instant, latent, looming, lowering, menacing, muffled, mystic,
      near, near at hand, nearing, obfuscated, obscured, occult,
      on the horizon, on tiptoe, overhanging, possible, potential,
      preparing, prowling, pussyfoot, pussyfooted, quiescent, skulking,
      sleeping, sneaking, stealing, stealthy, submerged, surreptitious,
      that will be, threatening, to come, under cover, under the surface,
      underlying, unmanifested, upcoming, veiled, virtual, waiting,
      waiting concealed