This pipe, together with the "external keyword list" pipe, shows how to grab a string of keywords from an external source and use them in a filter.
Thanks to hapdaniel for his excellent instructions.
Part of a mashup between Zoho Creator and Pipes to create a collaborative mapping platform that is easy to replicate and customize. To see it in action and learn how to build one yourself, go to http://wikimap.weebly.com/.