Internet holding company Internet Brands has acquired three niche community sites: HuntingNet.com (hunting), OffShoreOnly.com (boating) and Horsetopia.com (equestrian). The sites will help beef up the company’s Travel & Leisure categories, which currently includes wikitravel.org and flyertalk.com. HungtinNet.com and OffShoreOnly.com are community sites, which features of range of content, while HorseTopia is a marketplace linking buyers and sellers. Terms of the purchases were not disclosed. Release.