Can anyone give me an example of an ogg file that I should find when searching by artist and title ?

I have some ogg files which I am sharing, their ogg tags are set. I do not know if I should see them myself when I search for them. e.g.
Artist: Tom Lehrer
Title: The Elements

simply search for ogg, then you will see what's available. - It won't be much, though. Maybe you'll find 20 - 100 ogg files. - And no, you won't see your own files displayed in the search results.

Does anyone know the website for the OggVorbis network that was on Napigator?

May be you use an old version of LimeWire.
.Ogg files are already now in the list of audio files that are searched by default...

The current default list of extensions searched for each category is here (Java source file):

MediaType text = new MediaType(SCHEMA_DOCUMENTS, DOCUMENTS,
new String[] {
"html", "htm", "xml", "xhtml", "txt",
"pdf", "ps", "eps", "rtf", "doc",
"tex", "texi", "latex", "man"
});
MediaType programs = new MediaType(SCHEMA_PROGRAMS, PROGRAMS,
new String[] {
"exe", "bin", "sh", "csh",
"zip", "arj", "rar", "lha",
"cab", "rpm", "deb", "msi", "msp",
"gz", "gzip", "z",
"tar", "tgz", "taz", "shar",
"hqx", "sit", "dmg", "7z"
});
MediaType audio = new MediaType(SCHEMA_AUDIO, AUDIO,
new String[] {
"mp3", "mpa", "ogg", "wma",
"ra", "rm", "ram", "rmj", "lqt",
"wav", "au", "snd",
"aif", "aiff", "aifc", "mod", "med", "iso"
});
MediaType video = new MediaType(SCHEMA_VIDEO, VIDEO,
new String[] {
"mpg", "mpeg", "mpe", "mng",
"rm", "ram", "asf", "qt", "mov", "avi",
"swf", "dcr", "jve", "nsv"
});
MediaType images = new MediaType(SCHEMA_IMAGES, IMAGES,
new String[] {
"gif", "jpg", "jpeg", "jpe", "png",
"tif", "tiff", "bmp", "ico", "pcx",
"pic", "pbm", "pnm", "ppm", "xwd"
});

Well that is good news but it leaves the question why do you never find any ogg when searching by artist or title ?

We have already been given one answer, there is not much out there being shared.

I suspect there is another reason, does Limewire or any other Gnutella software identify ogg files being shared using the ogg tags if not then the chances of an audio search finding an ogg file must be slim ?