Some doubted his sincerity; others voiced their support or told of their own shortcomings on social media and blogs.
ESPN's Rick Reilly spoke on Colin Cowherd's The Herd podcast shortly after Woods' wide-ranging remarks, saying the world's No. 1 golfer seemed sincere.
Reilly said on the podcast that it was a Tiger Woods that he hadn't seen before, and thinks that the apology itself was a step in the rehabilitation process.
"If he really wants to save his marriage, he's got to leave golf for a good long time."
Jay Coffin and Mercer Baggs were decidedly unconvinced in their posts in the Golf Channel's Punch Shots blog.
"There were three distinct times where I found myself wanting to believe him, wanting to believe that he truly is a changed and humble man," Coffin wrote from Ponte Vedra Beach, Fla. "And each time I nearly fell for it, Woods said, or did something to make me believe this whole thing was nothing more than a staged photo-op.
"...You can never knock a man for hugging his mother, but the string of hugs and handshakes at the end of the talk was more scripted than the opening ceremony of the Winter Olympics."
Baggs also wrote that he was unconvinced: "Some people may buy what he was selling this Friday. ...I, in no way, do, if for only one reason: You cannot -- CANNOT -- say you let down your children and not breakdown with uncontrollable tears. Not if you truly mean what you're saying."
Other professional athletes weighed in on Twitter and blogs.
John Daly's Twitter account, PGA_JohnDaly, addressed the event more than other golfers on the PGA TOUR's players list on Twitter.
"Tiger -- where is your wedding ring? Most Important I would think to prove?" he tweeted during the event.
The Los Angeles Laker's Ron Artest blogged "My Letter to Tiger" on his Web site in support. The NBA player noted that it wasn't a direct letter to Woods, but a fan mail letter.
He wrote: "In reading the statements you have made, I can tell you are a stand up guy. Please remember only Jesus is perfect. You made a mistake and you admitted your infidelity. I have made the same mistakes."
He mentioned he had fathered a child after having two by the girlfriend who became his wife.
"On the way to 2010 we had many ups and downs on the way, mostly my fault. But I really chose to work hard and play ball to support her and my kids. The same reason you are building your legacy."
Ruth Marcus, a Washington Post editorial writer on politics who specializes in campaign finances and federal budget and taxes, wrote a blog entry in PostPartisan, with her thoughts on Woods' apology.
She referred to his apology as "The Full Tiger" -- a complete apology, compared with the non-apology and the curt apology, in which the apologizer resists actually saying the word sorry.
"The man walked in looking stricken," she wrote. "He walked out the same way. Maybe it was all an act, calculated to save sponsorships. If so, it was an extended and, I thought, convincing one. I've watched a lot of apologies in my day, mostly from politicians, and most of them annoy me. This one didn't."
"As Woods put it, 'Parents used to point to me as a role model for their kids. I owe all those families a special apology.' They deserved it. They got it. Enough."