Looks like My Web is Yahoo!'s answer to del.icio.us. Gather links and search results, publish your My Web links via RSS, and use the API for My Web. It's a beta and it shows ... del.icio.us is still miles ahead.
But here's some specific feedback on the RSS feed that is available for the shared folder.
Here's what my shared RSS feed at http://myweb.search.yahoo.com/myweb/user/JmsuNkD8IuTtqCqOM9o-/Shared/rss.xml (also burned as http://feeds.feedburner.com/YahooMyWebShared ) looks like:
<rss version="2.0">
<channel>
<title>Yahoo! My Web Shared</title>
<link>http://myweb.search.yahoo.com/myresults/myresults</link>
<description>Pages saved to Yahoo! My Web</description>
<language>en-us</language>
<copyright>Copyright 2005, Yahoo!</copyright>
<image>
<url>http://us.i1.yimg.com/us.yimg.com/i/us/sch/b/mys_logo_xsm.gif</url>
<title>My Yahoo! Search</title>
<link>http://myweb.search.yahoo.com</link>
<width>144</width>
<height>18</height>
</image>
<item>
<title>FeedBurner - Point your feed here. We'll do the rest.</title>
<link>http://www.feedburner.com/</link>
<guid isPermaLink="false">http://www.feedburner.com/</guid>
<pubDate>Wed, 27 Apr 2005 01:15:33 GMT</pubDate>
</item>
<item>
<title>Get the Yahoo! Toolbar Beta with My Web</title>
<link>http://beta.toolbar.yahoo.com/</link>
<guid isPermaLink="false">http://beta.toolbar.yahoo.com/</guid>
<pubDate>Wed, 27 Apr 2005 01:12:32 GMT</pubDate>
</item></channel>
</rss>
Couple of things pop right out. First, where are the notes I typed in for my links?!? I was expected that there would be a description element that contained my personal description of the link. Pretty useless without that!
Next, those aren't guids! There's nothing universally unique about those ids. I guess maybe they're scoping the id space to the feed, but that's not the idea behind a guid. Better to not have it than have these guids.
Tags/categories? Nope. Actually, maybe this isn't meant to be a link manager ... maybe it's just supposed to help you manage your search results over time or something.
Well, it's a Beta, so maybe this is just a rough approximation of what they're working towards. I'll probably continue to check in, but I don't see it displacing del.icio.us for me any time soon.