Some websites allow play in real time and immediately show the opponents ' moves, while others use email to notify the players after each move ( see the links at the end of this article ).

Some websites even cater to flamers and trolls, by allowing them a free environment, such as Flame-Wars forum.

Some websites allow geocachers to search ( build queries ) for multiple caches within a geographic area based on criteria such as Zip Code or coordinates, downloading the results as an email attachment on a schedule.

Some pawnshops sell specialty items online, on eBay or other websites.

Some of these websites have competitions, battles and signature of the week contests, where members submit their entries to have them featured on the website.

Some merchants attract customers to their websites by advertising through web banners or email.

Some websites require a subscription to access some or all of their content.

Some websites derive revenue by selling advertising space on their site either through direct sales or through an advertising network.

Some websites derive revenue by offering products or services for sale.

Some websites report a " not found " error by returning a standard web page with a " 200 OK " response code ; this is known as a soft 404.

Some websites are dedicated to providing email services, including Hotmail, Gmail, AOL, and Yahoo ; but there are many internet service providers which provide webmail services as part of their internet service package.

Some websites have a referrer log which shows which pages link to that site.

Some scammers will advertise phony academic conferences in exotic or international locations, complete with fake websites, scheduled agendas and advertising experts in a particular field that will be presenting there.

Some consumers use price comparison websites to find the best price and / or to make a decision about who or where to buy from.

Some people believe that the use of social networking sites is a form of " participatory surveillance ", where users of these sites are essentially performing surveillance on themselves, putting detailed personal information on public websites where it can be viewed by corporations and governments.

Some websites state that a Smallville once existed in Cloud County, northwest of Concordia and south of Norway, of which nothing remains but an old railway station, but there seems to be no record of this on Kansas historical sites.

Some of those websites also have lists of active servers for users to update.

Some viruses take advantage of the similarity between the ". com " top-level domain and the ". COM " file extension by emailing malicious, executable command-file attachments under names superficially similar to URLs ( e. g., " myparty. yahoo. com "), with the effect that some naive users click on email-embedded links that they think lead to websites but actually download and execute the malicious attachments.

Some people describing themselves as hacktivists have taken to defacing websites for political reasons, such as attacking and defacing government websites as well as web sites of groups who oppose their ideology.

Some online communities are linked geographically, and are known as community websites.

# Some websites offer learning activities such as quizzes or puzzles to practice language concepts.

Some commercial websites object to other sites making deep links into their content either because it bypasses advertising on their main pages, passes off their content as that of the linker or, like The Wall Street Journal, they charge users for permanently valid links.

Some web sites allow users to post their list of bookmarks or favorites websites for others to search and view them.

Some birds, especially corvids and parrots, are among the most intelligent animal species ; a number of bird species have been observed manufacturing and using tools, and many social species exhibit cultural transmission of knowledge across generations.

Some sponsoring agencies use Citizen Corps grant funds to purchase response tools and equipment for their members and team ( s ) ( subject to Stafford Act limitations ).

Some students attempt distance education without proper training of the tools needed to be successful in the program.

Some 4GLs have integrated tools which allow for the easy specification of all the required information:

Some of these sketches may even be shown to a client for early stage approval, before the designer develops the idea further using a computer and graphic design software tools.

Some other debugging tools have been designed to work with GDB, such as memory leak detectors.

Some of the earlier representatives of this species were still fairly small-brained and used primitive stone tools, much like H. habilis.

Some Unix programmers argue that traditional command-line POSIX tools constitute a complete development environment, an IDE, though one with a different style of interface and under the Unix environment.

Some ancillary tools used by hand-knitters.

Some early examples of computer markup languages available outside the publishing industry can be found in typesetting tools on Unix systems such as troff and nroff.

Some tools provide mouse gestures support in any application for Microsoft Windows.

Some of the better known instruments include the Minnesota Multiphasic Personality Inventory, the Five-Factor Model ( or " Big 5 ") and tools such as Personality and Preference Inventory and the Myers-Briggs Type Indicator.

Some tools may be combinations of other tools.

Some of the popular development environments also offer UML modeling tools, e. g.: Eclipse, NetBeans, and Visual Studio.

Some of GIMP's tools have already been converted to GEGL operations ; mostly tools which modify colors, brightness or contrast have been converted.

Some 10 – 12, 000 years ago, Tasmania became isolated from the mainland, and some stone technologies failed to reach the Tasmanian people ( such as the hafting of stone tools and the use of the Boomerang ).

Some important manufacturing sectors during this period included bronze smelting, which was integral to making weapons and farming tools.

Some of the tools are made of obsidian which chemical analysis indicates came from sources near present day Teton Pass, south of Grand Teton National Park.

Some of the same tools may be used in several different varieties of needlework.

Some operating systems include tools for " collecting " entropy from the timing of unpredictable operations such as disk drive head movements.

Some certification systems are criticised for primarily acting as marketing tools and lacking in their claimed independence.

Some of the more advanced revision-control tools offer many other facilities, allowing deeper integration with other tools and software-engineering processes.