Carol Allewell sent in a link to travel website www.Hummba. com this week.

"I like this site," writes Carol, "because I have a lot of friends that travel. They can load their travel pics onto the site, and add in commentary. The site tracks them around on their travels so when I log on, I can see where they are and what they are doing.

"Another use is that when you are travelling you can download info about the area you're visiting on to your cellphone. It's like having a private guided tour. It all makes me insanely jealous that I can't be with them, of course."

I went to have a look and it's a clean, easy-to-navigate site that tells you all you need to know as simply as possible.

I don't know if I'm so keen on seeing other people's trips, though - I can't stand it when people show you their photos of places you've never been to with people you've never met and you have to feign enthusiasm.

Maybe if the pictures were more interesting - such as stabbings and people caught in flagrante and movie stars scratching each other's eyes out, and JM Coetzee gossipping with a naked Ryk Neethling - but not Ryk gossipping with a naked Coetzee - against a backdrop of tourist attractions - then I would positively beg people to show me their holiday pics.

If you really want to see holiday photos with a difference, and you have a predilection for puzzles, Margaret Lewis's suggestion will be just up your ally.

She sent me a link to online jigsaw puzzles at National Geographic.

It's funny doing jigsaws online - the pieces are all the right way up; they make a satisfying little click when they drop into the right spot; and the cat can't jump on the table and knock them all off.

Maybe they should make them more realistic. Maybe every now and then random attacks by cats and children can knock the puzzle off the screen.

They should lose one or two pieces, so you never can finish, and they should be more cunning so that you're never sure if the piece you've slotted in place really belongs there. And then, at intervals, a voice should tell you to clear the table, NOW.

But they're still fun, and so are the other games on the National Geographic site, like memory matching.

Find them at http://ngm.nationalgeographic.com/your-shot/jigsaw-puzzles