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In July 1999 Netscape introduced RSS 0.91 (re-dubbed "Rich Site Summary"), incorporating most of the features of UserLand's <scriptingNews> 2.0b1 format. 0.91 added 14 elements to better describe channels, items, and update frequency, including a new "description" element for items (what some call "leads" or "blurbs").
From the 0.91 DTD:
<!ELEMENT rss (channel)>
<!ATTLIST rss
version CDATA #REQUIRED> <!-- must be "0.91"> -->
<!ELEMENT channel (title | description | link | language | item+ |
rating? | image? | textinput? | copyright? | pubDate? | lastBuildDate? |
docs? | managingEditor? | webMaster? | skipHours? | skipDays?)*>
<!ELEMENT title (#PCDATA)>
<!ELEMENT description (#PCDATA)>
<!ELEMENT link (#PCDATA)>
<!ELEMENT image (title | url | link | width? | height? | description?)*>
<!ELEMENT url (#PCDATA)>
<!ELEMENT item (title | link | description)*>
<!ELEMENT textinput (title | description | name | link)*>
<!ELEMENT name (#PCDATA)>
<!ELEMENT rating (#PCDATA)>
<!ELEMENT language (#PCDATA)>
<!ELEMENT width (#PCDATA)>
<!ELEMENT height (#PCDATA)>
<!ELEMENT copyright (#PCDATA)>
<!ELEMENT pubDate (#PCDATA)>
<!ELEMENT lastBuildDate (#PCDATA)>
<!ELEMENT docs (#PCDATA)>
<!ELEMENT managingEditor (#PCDATA)>
<!ELEMENT webMaster (#PCDATA)>
<!ELEMENT hour (#PCDATA)>
<!ELEMENT day (#PCDATA)>
<!ELEMENT skipHours (hour+)>
<!ELEMENT skipDays (day+)>
Here's a snippet of an equivalent RSS 0.91 file from WebReference.com:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE rss PUBLIC "-//Netscape Communications//DTD RSS 0.91//EN"
"http://my.netscape.com/publish/formats/rss-0.91.dtd">
<rss version="0.91">
<channel>
<title>WebReference News</title>
<link>http://www.webreference.com</link>
<description>Daily news, views, and how-tos on all aspects of web design
and development. Features free web-based tools, open source scripts, and
in-depth tutorials on DHTML, HTML, JavaScript, 3D, Graphics, XML, and Design
for webmasters.</description>
<language>en-us</language>
<image>
<title>WebReference.com</title>
<url>http://webreference.com/art/wr.gif</url>
<link>http://www.WebReference.com</link>
</image>
<item>
<title>The Evolution of RSS</title>
<link>http://www.webreference.com/authoring/languages/xml/rss/1/</link>
<description>
We look at how RSS has evolved from its humble beginnings
through present day and beyond. We survey all versions of RSS, including a
feature comparison, a new RSS survey, plus format and validation info. Learn
how the newest versions of RSS will move us towards a more Semantic Web. By
Andrew King. 0504
</description>
</item>
<item>
<title>Weblog 2.0 Released</title>
<link>http://www.webreference.com/perl/tutorial/22/</link>
<description>
Completely rewritten, Weblog 2.0 makes it easy to manage
multiple RSS channels and Yahoo-like directories. Highlights include a revamped
interface, multi-user support, one-step posts to multiple channels, Xhoo
directory integration, and more. This new version makes use of two RSS 1.0
modules, the Dublin Core, and the Taxonomy module. By Jonathan Eisenzopf. 0504
</description>
</item>
...
The beauty of these early versions of RSS is their simplicity. RSS 0.9 and 0.91 were designed for simplicity. That's one reason why they are one of the most popular XML formats today (with 96.8% of RSS files surveyed using one of these formats). Humans can easily read and understand RSS files and create them by hand, or with programs like Weblog (by our own Jonathan Eisenzopf) or Manila (by Dave Winer's UserLand).
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Created: May 03, 2001
Revised: May 07, 2001
