Currently, news/blog search and regular web search have completely different architectures and user experiences. News search allows search by date or relevance, web search only the latter.
There are only two things that matter for search: freshness and relevance. Pinging adds the former and improves the latter. It is therefore critical.
1. As the web gets older, search by date returns more relevant results.
2. Crawling can never produce real-time indexing for search engines.
3. Pinging with content allows sending metadata to search engines, giving information not necessarily on the page.
4. Pinging with content allows sending just the relevant content not all the other stuff such as sidebar links etc. to the search engine to produce more relevant content.
5. Pinging potentially allows a reputation system to be built to rank and categorize sources to allow searching within a topic or accross reputable news sources.
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tags: [rssping]