(f) send or otherwise post unauthorized commercial communications (such as junk mail, spam, chain letters, pyramid schemes, or any other form of duplicative or unsolicited messages) through or using any of the Parsec Offerings, whether commercial or otherwise. (g) use software or automated agents or scripts to produce multiple accounts on the Parsec Offerings, or to generate automated searches, requests, or queries to (or to strip, scrape, or mine data from) the Parsec Site (provided, however, that we conditionally grant to the operators of public search engines revocable permission to use spiders to copy materials from the Parsec Site for the sole purpose of and solely to the extent necessary for creating publicly available searchable indices of the materials, but not caches or archives of such materials, subject to the parameters set forth in our robots.txt file).