<s>
Readgeek	B-Library
is	O
an	O
online	O
book	O
recommendations	B-Application
engine	I-Application
and	O
social	B-Protocol
cataloging	I-Protocol
service	O
launched	O
in	O
December	O
2010	O
.	O
</s>
<s>
Users	O
can	O
also	O
create	O
reading	O
lists	O
,	O
book	O
discussions	O
and	O
follow	B-Architecture
the	I-Architecture
activities	I-Architecture
of	O
other	O
users	O
.	O
</s>
