How about a significance rating system. One set of radio buttons for significance (Impending, Impotant, Neutral, Trivial, and Personal).

Jeremy wrote:
] There are memes, and then there are Memes. Said another way:
] All memes are created equal, but some memes are more equal
] than others.
]
] I am quite dismayed and disappointed that MemeStreams allowed
] an entire week to pass without forcing me to read and
] recommend the essay by Philip Kennicott that appeared in the
] May 5 edition of the Washington Post. This should not have
] been allowed to happen.
]
] Between the time of publication and the time of this writing,
] I received several messages in my MemeBox, but none pointed to
] this essay. One of them was about a story in the Weekly World
] News. Another, which I ignored, appeared to be some kind of
] conspiracy theory involving the Mossad. A third item directed
] my attention to academically interesting but ultimately
] insignificant research results in the field of cryptanalysis.
]
] An analogous situation is known in computer science as a
] priority inversion. It is an undesirable condition, but steps
] can be taken to design it out of the system. At this point I
] am forced to consider whether MemeStreams has taken sufficient
] measures to minimize the occurrence of priority inversion.
]
] In part, the reputation agent is designed to solve this
] problem. By selecting and sorting available memes based on
] weighted adjacencies in the social network, the cream is
] supposed to rise to the top.
]
] For many users, memes pass through the reputation agent in
] particular much as ideas flow through the news media in
] general: here today, gone tomorrow. While this approach
] generally suffices for the run of the mill meme, it is
] woefully inadequate for that most rare, truly exemplary meme.
] A remedy must be devised.
]
] I have a proposal. It consists of one idea in two parts: gold
] stars and sticky bits. Allow me to explain.
]
] Each year, on the anniversary of your blog, you are issued a
] one year supply of gold stars to use as you see fit. A year's
] supply is on the order of eight to ten gold stars. Use them
] with care, because they must last you through the entire year.
] When you see a truly outstanding must-read-NOW meme that is
] simply not to be missed under any circumstances, even if it
] means running around a one-stoplight town at 2 a.m. with a
] PowerBook and a WiFinder, attach one of your gold stars to
] this article. Don't jump the gun, because once you attach the
] star, it cannot be revoked, it cannot be reused, and it will
] be present for all to see, for all time.
]
] The reputation agent knows about gold stars and takes notice
] when they appear. This is where the sticky bits come in.
] Starred memes are moved to the top of the stack, are
] unmistakably highlighted, with the normal white text on a blue
] background replaced by larger, bold white text on a red
] background. Regardless of the "TimeFrame" setting, these
] memes stay at the top of the stack until one of two actions is
] taken by the user. a) The user posts the meme to his/her
] weblog. b) The user explicitly dismisses the meme by clicking
] on a special purpose link at the bottom of the entry, next to
] the links for Thread, Recommend, and Reply. Like the Delete
] function, the Dismiss function prompts the user for
] confirmation, again presenting the description(s) provided by
] the user(s) who have attached (a) gold star(s) to the meme.
]
] At the expense of a slight increase in complexity, this
] mechanism could be protected against abuse by new users. For
] example, gold stars could be held in escrow and rationed out
] to new users, at a maximum of one per month.
]
] It is hoped that with gold stars and sticky bits, we can
] dramatically reduce the occurrence of missed excellence within
] the MemeStreams community.

RE: On The Relative Importance and Urgency of Memes, and a Modest Proposal