内容 不但要人阅读，也需要机器来阅读。这就需要对内容进行结构化描述，rss 就是比较典型的应用模式。
内容的重用可创在出新的内容
aggregation
Defining Microcontent
date:2003-12-10
来源:http://novaspivack.typepad.com/nova_spivacks_weblog/2003/12/defining_microc.html
It is a finite collection of metadata and data that has at least one unique identity and at least one unique address on the network, and that encapsulates no more than a small number of central ideas, where the number of central ideas encapsulated is usually 1.
For example a Weblog posting is a microcontent object because it is a finite collection of metadata (the fields of the posting as defined in XML or RDF) and data (the content of the posting), and it has an identity and URL, and is generally focused on providing a small quantity of information about a single central idea (although not always).
The Metaweb is a distributed network
The Metaweb, like the Web, does not exist in one place. Rather it is a distributed system that is chaotically organized from the bottom-up in a grassroots manner.
Information Architecture for the World Wide Web?
Microcontent Design, Part 1
date:March 21, 2006
creator:Richard MacManus
url:http://www.readwriteweb.com/archives/microcontent_de.php
As I’ll outline in this series, microcontent design involves: microchunking your content, taking advantage of open standards, employing microformats, letting users subscribe to all kinds of RSS feeds, freeing your content via APIs and other means, designing for re-use of information, monetizing it, and more.
Representing data and designing for re-use of information
Step two is standard ways of representing data, to enable people (and machines) to find and consume it. In an era where a veritable glut of media is available online, from both professional and amateur content sources, it’s become very important to make sure your data is easy to find and use.
Structured Blogging and microformats are two relatively geeky topics at this point in their evolution, but they are significant developments in terms of representing data.
Structured Blogging
Structured Blogging is an initiative launched in December 2005 by small RSS-driven companies PubSub and Broadband Mechanics (disclaimer: I work for the latter). Structured Blogging is a set of formats and plugins that enable blogs to publish different kinds of information – like events, reviews and classified ads – in a ’structured’ format, so that aggregators can pick up the data from all over the Web.
It’s that ‘re-use’ of blog content via aggregation that will be where the real value lies in Structured Blogging. As of writing there are no Structured Blogging aggregators available, but a hint at the value that it could provide in future is the independent company edgeio – which was launched in February 2006. Sellers can get their data listed on edgeio’s website, simply by posting an item to sell on their own weblog and tagging it “listings”. Buyers are able to search and find goods and services at the edgeio website. How it works is that edgeio aggregates goods and services data by scanning over 25 million RSS feeds, looking for the tag “listings”.
This is a great example of how data you publish on your own weblog, or at a specialist service such as the jobs listing site SimplyHired.com, can be ‘re-used’ by a service like edgeio – simply because of the way the data is marked up. Whether you use Structured Blogging markup, or simple tagging that edgeio will recognize and pick up, either way you are in a very real sense designing your microcontent for re-use.
Microformats is the generic name given to any format that builds on XML (X)HTML to provide additional metadata about web objects. This is the definition on the microformats.org website:
“Designed for humans first and machines second, microformats are a set of simple, open data formats built upon existing and widely adopted standards.”
A good example of a microformat is hReview, a format that provides a common markup for reviews (of products, services, etc). Check out Phil Pearson’s NZ Coffee Review site for an example of hReview in action. Also it’s great to see Microsoft embracing microformats, as announced at Mix ‘06.