First-Class MailÂ® is a fast, affordable way to send envelopes and lightweight packages. Itâs perfect for business and personal correspondence, cards, brochures, and lightweight merchandise. The First-Class Mail ForeverÂ® Stamp price is $0.49; First-Class Mail Postcard Stamp price is $0.34.
Architecture of a metasearch engine. A metasearch engine (or aggregator) is a search tool that uses another search engine's data to produce their own results from the Internet. Metasearch engines take input from a user and simultaneously send out queries to third party search engines for results. Sufficient data is gathered, formatted by their ranks and presented to the users.
Definition of meta in English: meta. noun. âEach of these elements is enclosed in angle brackets and begins with the word âmetaâ (< metaâ¦ >).â. âIf you frequently use Alt keys-for example, if you use Emacs and Alt is your meta key-you probably will prefer this.â. âA predecessor of the pop-up window, the fast meta refresh trick involves opening one page and almost instantly having your browser redirected to another page.â.