Maybe it’s because a couple of friends have passed recently, but I’ve been thinking a lot about friendship lately.

I started to look around and take inventory of who’s in my life — and who wasn’t anymore.

While social media — namely, Facebook — has helped me stay connected to friends from childhood, college and old workplaces, it hasn’t really helped me stay connected in a literal sense.

Sure, I know who’s had babies and who’s recently gotten married. But I can’t say I’ve had a long conversation — preferably over food! — with most of my old friends.

Sometimes it’s the distance, sometimes it’s because of schedules. But most often, it comes down to time.

No one seems to have it.

I wonder how much time we spend doing things other than connect with the people we love. How much time do I spend watching reruns of “The Real Housewives” reunions or replying to tweets?

I try to grab lunch or drinks or surf with people — and believe it or not, I’m rarely on my phone during these in-person meetings! — but I can’t meet up with everyone. And that’s sad. So many of my friends — from college, from The Advertiser, from past jobs, from writing groups — I haven’t stayed in touch with. And I miss that.

I’m sure it’s a function of getting older, too. We accumulate friends over the years, and it’s virtually impossible to stay connected to everyone. We pick and choose our close friends, often based on convenience or schedules, and the others tend to fall away.

I hate that.

I saw how devastated the Old Guys were when we lost Jimbo and Donald in the same month. I hate to get the phone call one day that an old friend of mine had passed — and I didn’t have a chance to say anything, namely, “Thanks for being a friend.”

So here’s what I want you all to do: make a date with an old friend. Connect. Reconnect. Say hello. Give that person a big hug. Tell them how much they’ve meant to you. Do it. And do it now. Tomorrow is never a guarantee.