What’s the largest and best network that allows B2B companies to well…network? If you use LinkedIn for professional services lead generation on a regular basis, you’ll probably agree that they're it. This isn't to say that industry-specific forums and other social networks are unimportant. With all the online social channels available today, you shouldn’t put all your eggs in one basket. Spending quality time on LinkedIn, however, is worthwhile for a number of reasons.