Microblogs do have many benefits. Keeping in contact with people that you may not see much or family across the world. It is also a good tool for networking and growing a company, but also can be very challenging. A personal facebook account or tweeter account can be an open book for an employer to review and maybe judge you from before you even get an interview. I know with my company we hire a so called "Head Hunter" to check a person out before we bring them in for an interview and that is the first place they look. I have several accounts that I do use. Facebook I use for personal contact, twitter I use to stay up to date with my sons school and sports, Linkedln I also have, but do not use as much. It is not as friendly and convent as the others.