I have come across this article which was published today.
To quote a particular part:
,----[ Quote ]
| No sitemap - A sitemap is the search engine optimisation tool of choice
| to ensure every page within your website is indexed by all search engines.
| You should link to your site map from, at least, your homepage but
| preferably from every page on your website. If your website contains
| hundreds of pages then split the sitemap into several categorised maps
| and link these all together. Try and keep the number of links per page
| on a sitemap to less than 100.
| Excessive links - Excessive links on a given page (Google recommends
| having no more than 100) can lower its relevance and, although it does
| not result in a ban, this does nothing for your search engine
| optimisation strategy.
Some time ago, someone in this group said this rule no longer stands. Is this
correct? Would this limit the extent of crawling?
Many thanks in advance for your time...