PUBLIC MARKS with tags tech & xhtml

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some techniques to display annotations on images using only xhtml and css.

xFolk Entry 0.4 is a new iteration of the xFolk microformat that is extremely easy to implement. It enables the publication of tagged bookmarks so that they can be harvested on the web and aggregated into folksonomies. As such, xFolk eliminates the need to rely on centralized data repositories to create folksonomies.

why making a custom DTD for the sole purpose of validation is a mistake, and in which cases it does make sense to create and use one. For these cases, this article will also present techniques for creating clean custom DTDs and avoiding hacks.

Info about XHTML.