AP Technology Writer Facebook is introducing hashtags, the number signs used on Twitter, Instagram and other services to identify topics being discussed and allow users to search for them.
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Facebook introduces hashtags
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Bing launches Facebook Maps app
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Pfizer launches Twitter feed
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Facebook and Twitter help nurseries to engage with busy parents
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Facebook: personalised URLs could cause headaches for trade mark owners
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Facebook sends window decals to local businesses
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MySpace announces a new ``Mashup with Facebook'' feature
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Boynton Beach launches social media campaign
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Facebook, Twitter post big traffic gains
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MyLondonInfo launches social networking pages
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Facebook launches in Arabic and Hebrew
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Facebook revamping users' profiles
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Facebook CEO Mark Zuckerberg announces new feature
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Facebook more popular for sharing
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Myspace introduces Mashup with Facebook.
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Facebook makes major announcement:
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Facebook tests non-social marketplace ads in News Feed