Skype for Business is now the current Microsoft product for Communications and Collaboration, replacing Lync Server 2010 and 2013. Q&A and discussions related to migration to Skype for Business and configuration can be made here. This is not to be confused with the regular Skype client which is a totally different product.
Skype for Business is the new branding for Microsoft's Communication and Collaboration product suite. Any questions asked in Lync forums can be asked here. The architecture is similar, just the name has changed so the expertise will move forward seamlessly.