http://www.needscripts.com Free, huge range including java, javascript, dhtml, python & perl. No login required.
http://www.cutandpastescripts.com Free, remotely hosted scripts. Counters, forms, redirection etc. Login required.
http://www.brainysearch.com/search/push/search.html Add a free search engine to your web page! Results displayed in your page. Remotely hosted, but ad free.
http://www.mediascooper.com Live news feeds streamed to your site. Remotely hosted, very easy to use.
http://www.hotscripts.com Huge range of scripts. Highly recommended.
http://javascript.internet.com/ Excellent javascript site; try the games!
http://www.thejavascriptsource.com/ another excellent javascript site
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