ReadWriteWeb ran a series of posts outlining the 5 biggest, most cutting edge Internet trends of this year: Structured Data, Real-Time Web, Personalization, Mobile Web / Augmented Reality, Internet of Things. This is ReadWriteWeb’s State of the Web 2009.
Each post consists of a short description of the web trend along with some implementations.
ReadWriteWeb has also compiled the main points into a single presentation. All of the links in the presentation are clickable, should you wish to explore a certain topic more.