Rule 44 is that if you can think of it, you can download it from rapidshare. This search engine helps you do that.

Terrier is a highly flexible, efficient, and effective open source search engine, readily deployable on large-scale collections of documents. Terrier implements state-of-the-art indexing and retrieval functionalities, and provides an ideal platform for the rapid development and evaluation of large-scale retrieval applications.
Terrier is open source, and is a comprehensive, flexible and transparent platform for research and experimentation in text retrieval. Research can easily be carried out on standard TREC and CLEF test collections.

python-happy fultext search lucene-style, without java. "Apache Lucy is full-text search engine library written in C and targeted at dynamic languages. It is a "loose C" port of Apache Lucene™, a search engine library for Java."

SimString has the following features:

Fast algorithm for approximate string retrieval. For example, SimString can find strings in Google Web1T unigrams (13,588,391 strings) that have cosine similarity ≧0.7 in 1.10 [ms] per query (on Intel Xeon 5140 2.33 GHz CPU).
100% exact retrieval. Although some algorithms allow misses (false positives) for faster query response, SimString is guaranteed to achieve 100% correct retrieval with fast query response.
Unicode (wchar_t) support. For languages using multi-byte characters, developers can use Unicode characters (wchar_t) instead of single-byte characters (char) as a character representation.
Implementation in C++ header files. Developers can add the funtionality of approximate string retrieval into C++ programs just by including a header file.
Python and Ruby bindings via SWIG. Developers can easily perform approximate string retrieval in scripting languages.

search for python code, kaggle style.

string embedding, fast. ouputs to libsvm and matlab etc formats

curious. collaborative corporate spying for mutual gain of employees and employers. So I'm told.

In Australia you need to know which code you are and which code the journals are. if you try to submit to one in the wrong field you endanger your whole unit's funding. This academic has made a nice interface to them all, although as it was not a publication in his journals, that time was putting his funding at risk by not going into publication quotas.

pretty viz of where your traffic is from, more or less.

google without tracking or, er, features.

facet and field search library for python.

now you can find things to be invited to, not just at

purportedly non-ugly LaTeX indexing for spotlight

crzay-friendly travel search tool with all manner of nice visual ways of optimising your budget.

anti sex traffickers plant to crawl sex sites looking for kidnap victims

teh stackexchange mega hub, whee the diaspora of questionably integrate sites that look a bit like the amazing stackoverflow.com site hang out and share expertise.

another Q&A site. unlike stackexchange it doesn't artificially segment communities but lets topics organically grow. unlike vark.com it emphasises collaboration and reputation, and integrates a bit better with social media. And there are lots of nerds i know on it. interesting.

pretty much everything you need to know about fixing fucked spotlight indexes from the command like, the way it should be done.

a thingy which points out when google is monitoring your behaviour in your browser

automatic writing cliche manufacturer, based on the most common phrases in use in the global datasphere at this point in time

the future of music processing is nlp?

REESTful auto-redundancy search engine. I think it still uses Lucene under the hood.

fast and loose homophone happy fulltext search in redis.

cocoa/ osx ACK UI

Basic text search with relevancy for MongoDB.

universal US public transport directions

pretty, visually smart search visualisation

google autocomplete tastiness

lucene's similarity matching

It's not clear, but it seems google's python sitemap generator is now hosted here, not in the 3 year stale version on sourceforge

get DOI from fulltext string

some nice tips here for automating tedious citation metadata parsing

porter stem your way to happines with a home-baked google app engine search

spotlight supports google-esque term faceting

what chord is that?

missing the sweet, sweet journal access of academia? This claims to have better search than most journals and allows discount 1-day article rentals. I'd be curious to hear how good it was in fact.

"Proxy develops and extends sophisticated architectural tools to conceive of design as a search. Designing "options" in parallel is nothing new, but by innovating flexible tools for design, we are able to massively expand the information being considered and generated. This enriches the design process and provides valuable feedback and contingency. With computation, we consider an incredible number of variations and options. We actively search through a space of possibilities to find unique solutions."

I keep forgetting its name. this is the service that uses your phone microphone to tell you what track you are listening to in the background

very, very useful. real estate analytics from across australia in a reasonably parseable from. usage rights would be interesting to know too.

general scripty quick search box plugins

pay someone to crawl the web for you. neat.

There's some hidden gems in google's trite re-branding as a government service provider. Their ideascale+forum thing, "moderator" looks interesting.

mongodb seems to have perfunctory support for full-text indices, but it does look easily extensible. (or at least, you can extend it in an easy language without learning some weird vendor-specific SQL variant.)

Hm - an intersting use of google's pagerank algorithm. But I wonder how it performs under conditions of low information? (there is no food-web-spider)

Some choice snippets about he google books settlement as an IP watershed - both as an economics-of-books-issue, and as intersting problem for, say, researching language corpii.

An interesting combo google-hack plus python hack that locates unsecured webcamera on the web and in reality.

from my perspective, a yahoo term extraction replacement. Also apparently light POS tagging.

awesome search on public geographic datasets

some kind of twisted fan site for google maps.

A nice hack - this searches your site for alternative content shoudl punters link somewhere incorrect...

find instant links to tracks online

"Want to know who you're buying from?
Want to know who owns them?Want to buy from people who are good to the world?
We do. That's why we created this site

Scryve is a research and vetting engine for environmental and social responsibility. We rate companies and provide you with alternatives options to use whenever you don't like a company. We've got research on over 3500 companies from industry leading CSR firm, KLD, paid researchers and people like you."

quasi-structured metadata search across scientific publications databases.

it seems that google are building quicksilver. except not open. and google intergrated. and not abandonware...

outstanding postgres search snippet, bringing it to be very close to a first-class ORM citizen.

google custom search for torrents. seems rather comprehensive.

native db-backed fulltext search queries for django

har. yet another fucking django search option. claims to be the greatest thus far and the thoughtfulness feature list seems to support that. (similarity ranking?) me, I'm stoked that I don't have to investigate this one, blessed be outsourcing. includes pure-python Whoosh backend.

price comparator for australian gizmos

the terrifying thing about this april fools joke is that it appears to actually function.

awesome - API access to file tagging from your objc apps., and get spotlight indexing.

nice looking bundles of tagging, search and analysis apps for your files. (search fiels by tags, images by colour and so on). Also includes an opensource metadata/tagging suite.

social question answering, where you trade answering questions for answers to questions. fast and interacts with mobile devices, IM, etc, and found me the best pastries in Adelaide.

another slightly different django search backend.

python google search scraping bypassing API limits

the reverse of what we are doing at PHM, and devilishly cunning, although not the first time it's been done. Generates similarity ranging *and tags* by parsing a large corpus of text and using similarity indices.

one stop google-style analytics/SEO shop

vertical search for django-related topics

java-based string metrics implementations

leopardy search-friendy chm GUI. Still maintained, unlike CHMOX, and has a superior feature-set

"CHMporter is an CHM importer for Spotlight. It use Chmlib to get the text inside every CHM files and index it."

predates intel macs but the source version compiles without issue

search you google docs and bookmarks from the mac os search interface

search result aggregating thing, providing combining multiple internal and externally provided search results. (in theory - only yahoo BOSS so far)