Recreation via the Internet may be referred to as ePlay. The initial mission of eBehavior.org is to collect and provide access to Behavior Analytic resources related to eBehavior. Just like any other industry or area of human activity, business and play on the Internet and Web has an evolving lingo used as a short cut. Love it or hate it, it is unavoidable without avoiding the areana. Who knows which, if either, would make a linguist or grammarian happier, but the forms without the hyphen appear to be the more common, at least for the terms that have been around longer.
Hyphenation seems to be a transitory introductory state.
Many English compound words have gone through this process. Search engines will generally break a hyphenated word into two words. Jargon Resources Internet Glossaries . A motely assortment of glossaries and dictionaries . The non-proprietary data under AOL Search's Directory come from the Open Directory Project .