Pingoat is an alternative to Ping-o-matic. Both are intented to notify a number of services that keep track of weblogs. Such notifications are called "pings" (nothing to do with TCP/IP ping). Pingoat has a bigger number of services and is faster compared to ping-o-matic.

Updated (09/14/05)
I discovered pingoat thanks to the following blog notes:

Pingomatic Not Working? Now There is Pingoat!
by Bruce Eisner

Pingoat: A New Service for Promoting Your Blog
by Rich Brooks

and some others.

Technorati is for blog what Google is for classical web sites. But what is the difference?

First, the difference is about the way to register a new entry. Google is using a robot that periodically crawl your web site. For Technorati, bloggers must say to Technorati that they have something new. This operation is called a "ping" (nothing to do with TCP/IP ping) and is done using this Technorati Ping Form. Your note will appear in Technorati only several minutes after submission instead of hours or days for Google bot to crawl your page.

Another difference is that Technorati uses tags (like del.icio.us, see my previous note on del.icio.us). Tags can be seen as categories. Popular Technorati tags can be seen here. The goal is to be able to see what bloggers are saying about a particular topic. If you type http://www.technorati.com/tag/webdesign in a browser, you will have what people are currently saying about Java. If you want something to be store on a particular tag, just put a link like that under your note:
<a href="http://www.technorati.com/tag/technorati" rel="tag">technorati</a>.

Starting from now you will see Technorati tags in the footer of our blog notes.

I'm happy to present Google Sitemaps Stylesheet (GSStylesheet), a XSLT stylesheet named gss.xsl. The stylesheet has been created by Baccou Bonneville and others to display sitemaps XML files in a user-friendly way. You can also check that the URLs in your sitemaps are working. Thanks to Johannes Mueller, sorting is also available for sitmap files.

Here is a demo of Google Sitemaps Stylesheets for Baccou Bonneville web site. It works with IE and Firefox.

Google is experimenting Google sitemaps, a new tool for the webmaster to teach Google bot about the different pages of a web site.

The web pages are described in one or more XML-based files. Google provides the XML-Schemas for these files. It is clear that these files should be generated by a Content Management System or a blog engine. Google sitemaps also support RSS or Atom feeds as a description of your web site. A web-based administration tool is provided by Google to manage submissions and to control errors.