Suggest lens for my NIkon d3000?

I have a Nikon D3000.So far I have the kit lens, and just recently bought the 35mm f1.8. What lens should I get next? I pretty much only take pictures of my daughters, if that matters?

Only thing it has to have is autofocus.

That's all you need. Unless you are looking for a nice portrait lens? If you want excellent portraits get a telephoto lens. I'm warning you, they're big and expensive lol. I think your set up is pretty good so far though.

You don't need another… If all you are doing is portraits, why waste money on more lenses…

AF-S NIKKOR 85mm f/1.4G
AF-S NIKKOR 50mm f/1.4G
Two popular lens for portrait.

The best portrait lens is the AF-S 50 mm f/1.4 for your camera.

The last lens I would have purchased would be the 35 mm, especially if I was shooting portraits

The 35 mm on your camera is too wide to be used as a portrait lens and too long to shoot landscapes.

Buying lenses based upon popularity is never a good idea. You have to choose your lenses based upon the suitability of the lens for the purpose you intend to use it.

For instance the lenses I would choose for use on your D3000 are these:

AF-S 10-24 mm for landscapes
AF-S 60 mm f/2.8 macro for shooting closeups
AF-S 18-200 mm as a one lens solution

And for shooting portraits, AF-S 50 mm f/1.4

Notice that all the lenses are AF-S, the lens type that your entry level D3000 uses and can auto-focus. You will also notice that you will have to save your pennies to be able to budget for the lenses you want buying because a lens costs less than another one is another bad idea