Timeframes of Web Services

Just got back from a trip to San Francisco where I was discussing with smart people from Atten.tv, Trakzor and Downfly about the concept of influence. Trying to frame this, I came up with this rough chart of where various services operate in the past-present-future continuum, and the important concepts for each.

Past Present Future
Past Present Future
  • Google Search
  • Wikipedia
  • Delicious Bookmarks
  • Digg
  • Delicious/Popular
  • Technorati Search
  • Google BlogSearch
  • Google News
  • FeedBurner Stats
  • BuzzMetrics
  • Umbria
  • PageRank
  • In-Links
  • Citations
  • Revisions
  • Age
  • Decay Rate
  • Votes
  • Influence
  • Subscribers
What have people paid attention to in the past? What are people paying attention to right now? What will people pay attention to tomorrow?

What do you think, does this seem about right?