Windows 7 Tip: 
Yahoo giant has directly challenged the current favourite of netizens – Twitter and launched a microblogging platform called Yahoo Meme. It looks like Yahoo definitely has lofty ambitions for Yahoo Meme, as it has stealthily rolled the micro-blogging service out in Spanish and now in English to appeal to the masses.
Yahoo Meme is currently available in an invite only mode, where a user can create the account after receiving invitation.
people are not worried that MeME will provide competition to Twitter but for the MEME, because Yahoo does has the tendency to shutdown its service after a while… WIll yahoo repeat it same like they did with geocites and Briefcase service for some users….