Yaroslav Pentsarskyy has been involved in SharePoint solution architecture and implementation since 2003. As a Microsoft MVP since 2009 he keeps in close touch with the SharePoint product team. Yaroslav frequently presents at local and worldwide tech events as well as online; you can always find a fresh bit of SharePoint information on his blog:
http://www.sharemuch.com. He is also the author of two other SharePoint titles: "Top 60 custom solutions built on SharePoint 2010" and "SharePoint 2010 branding in practice".