Evidence
The evidence that I see for social networks to become an everyday component of the business world is the popularity they have achieved, the benefits that they provide, their low cost, and the realization that prior technologies such as IM have become mainstream in the workplace also due to their low cost and heavy use.
New Opportunities for IT Technicians
As business networking expands there will likely be opportunities for IT support technicians at the provider level. Customer support needs will grow in proportion to the increasing customer base and require additional technicians.
Skills
The most prevalent skills required of the support technicians will be troubleshooting software and hardware compatabilities and good communication skills when working with the end users. Although they will likely never be face to face with the user, the lifespan of social networking depends on acquiring and keeping a user base that continues to multiply. Strong technical knowledge and clear, friendly communication will help achieve this goal.