I agree with John B that 呢 (ne) usually can be translated with something like, “and what about….” On the current dictionary page, though, there are several examples where it doesn’t work:

风大着呢。
There is heavy wind.

门开着呢。
The door is open.

雨下着呢。
It is raining.

You’ll notice that for all three of these, the verb is followed by the particle 着 (zhe). This is a recurring pattern, and in these cases you don’t really need to worry about what exactly 呢 (ne) means here. It’s not something to focus on in your very first Chinese lesson, at any rate.

Then there are the examples where 呢 is not preceded by a noun, like this one:

有哪些呢？
What are they?

In that case, the original concept still applies, but you should just shorten the translation in your head to “And…,” as in, “And what are they?” or “And which ones are there?” (depending on the context).

I always thought of 呢 (ne) as “and as for…” that is at the end of the sentence instead of the beginning.

你呢 ni ne — and as for you?
你的公司呢 ni de gong si ne — and as for your company?

good luck
高建

好，老子看你今天是来找打的。今天不教训你我就不姓王。
All right pal, I see today you’re cruisin’ for a bruisin’. I’ll teach you a lesson today, or my name isn’t Wang.

I *wish* I knew how to say this in my first month of Chinese.