Would you like to share your experiences with others via the Web? Would you like to learn what others are doing or saying at the events and topics that interest you? Would you like to attend a conference or a special event just following the real-time descriptions that stream in from everyday people who are actually there? You can, using a hashtag, a special keyword that aggregates content across users and Web services.
If you have a Twitter account, share your notes by appending
# plus a hashtag to each tweet, as in
#newyear, etc. (To learn more about Twitter, see Using Twitter)
If you are sharing a blog post, a Flickr image, or other item, just use the name of the tag, as in
No camera? No Flickr? No Twitter? No problem. You can still check out what everyone else is sharing by searching Twitter (http://search.twitter.com), Flickr (http://www.flickr.com), and other Websites individually, or try searching across many sites at once with aggregation site like Addict-o-matic (http://addictomatic.com). (Learn more about Tagging and Addict-o-matic at https://wikispaces.psu.edu/display/training/Tagging+and+Addict-o-matic.)