The WIPO (World Intellectual Property Organization), the UN specialist agency for intellectual property has published a new Patent and Patent Co-operation Treaty website called "PatentScope". There is a lot of useful information on that site not only for inventors but for those who want to keep abreast of developments in technology.
For a start the "PCT Gazette" is now online. This periodical contains information about all new applications received that month. Another useful journal is the PCT Newsletter with information about the patent and utility model; protection available in each country. There is some basic information for applicants as well as more detailed stuff for IP practitioners. There is a facility for registering for email updates.