google + will help you be found as the traffic via the google search is large.
don't forget to include youtube and customize that channel art as well. try to keep your branding uniform on each platform.
go ahead and do videos. keep them short and offer tips. usually about 2 minutes or less.
find your friends, family and colleagues and "circle" them. put them into corresponding circles that make sense to you.
join groups and go to google chats. participate!