Best Linux alternative to Windows program Info Select

[mistywindow]

Info Select is an overly expensive, ugly Windows program with poor support and too many unnecessary add-ons – but it has an amazing capacity for random data retrieval which keeps its users loyal.

Even with tens of thousands of random notes large and small, saved web pages, articles, whatever — lighting fast boolean searches reveal all relevant items instantly.

Is there a program or utility available for Linux which will do something similar in saving and retrieving large amounts of random text data?

[mistywindow]

For the benefit of posterity, here's one that comes close to Info Select's note-taking and search capability:

http://basket.kde.org/index.php

It's a real gem.