1. refactor search node_rank with hook_node_rank scoring factors: Node module’s content search allows four different runtime scoring factors, including keyword relevance, recency and number of comments. This patch replaces the hardcoded scoring factors with a hook that lets any module inject similar scoring factors.
2. Path module should add URL alias to update index in nodapi.: Currently, the URL alias of nodes doesn’t play any role in the keyword relevancy of Drupal search. This might be the #1 reason Google still beats us at searching Drupal.org.
3. Add spelling suggestions to the “no search results found” page.: When no search results are found, this patch looks at the query, looks at the words in its index, and uses the Levenshtein algorithm to make a spelling suggestion that might be what you intended to search for.
4. Patch To Add User Profile Search: User search is useless in its current form. Being able to search user profiles would be a huge step forward in making search/user into something special.
5. search_index hardcodes boosts to html elements. Should be configurable.: <h1> gets 25 points, <a> gets 10, and <em> tags get 3; wouldn’t it be nice if this were configurable?
6. Exclude node types from search index: Sometimes you don’t want certain content types to be indexed. This adds an administration configuration for that case.
7. Optional Exclusion of Taxonomy Vocabulary from Advanced Search: For those of you with HUGE taxonomy vocabularies, this will make the advanced search form usable again.
8. Indexing options for taxonomy: Administrator gains the ability to say how strongly taxonomy terms should weigh in the indexing process. Synonym support included.
9. Add scoring factor controls to advanced search form
   The administrator can adjust runtime scoring factors on the site configuration -> search page. Why not let the end user decide how important each scoring factor should be by using the advanced search form?
10. Fix search index link handling for non-existent nodes
    Esoteric bug with an RTBC patch (waiting for just one more review) that fixes the case when someone links to a not-yet-created node.
11. Showing result count and result range in search results: This is really a feature request for the pager. Why don’t we have something like “Showing 10-20 from 500 results” on our search pages?
12. Replace “blue smurf” in no search results message: The quintessential bike shed argument. What two words should replace “blue smurf”?

Please help review and refine these patches. All of them need SimpleTest cases written as well.