LinkedIn to become "indispensible daily tool" for business?

LinkedIn, an Internet social network for professionals, will open up its service on Monday to outside software developers, starting with BusinessWeek magazine, to transform itself from an online contacts and referral database into an indispensable daily tool for business users... The program will let outside developers create software for LinkedIn as well as embed features of LinkedIn, such as finding your business contacts, directly from partner Web sites.

This obviously presents exciting new opportunities for enterprising Web businesses that cater to business users, including jobseekers. More on the announcement at the following blogs:

• The LinkedIn Blog
• VentureBeat
• Marketing Pilgrim
• Read/Write Web
• Search Engine Land