I'd like to know if portlet is a specific Java technology or a general concept that can be used by other languages.
SCEA 5 (part 1), SCBCD, SCWCD, SCJP, CLP, CLS
posted 6 years ago
Portal and portlets are generic concepts. Java portlet technology is a JSR standard, which means that you can deploy your portlets on any portlet container which is JSR 168/286 complaint. Some portlet containers support building portlets in different programming languages like PHP, Groovy, and so on.
If you look at iGoogle, it doesn't use Java portlet technology to aggregate content from different sources like YouTube, Gmail, and so on.