Here’s an easy way to type those International Phonetic Alphabet symbols that aren’t included on a standard keyboard: IPA.typeit.org, which lets you just click to enter the symbols in a text box. You can even format what you type. This is particularly useful if you can’t install an IPA palette/virtual keyboard on a work computer and still need to enter IPA. Hat-tip to EFL Geek!
If you need a more long-term solution, checking Google for your operating system’s name + “typing IPA” should turn up something. In NeoOffice for OS X, I can get to IPA symbols by just going to Insert -> Special Character -> IPA Extensions, and other Mac applications have IPA under Special Characters -> Phonetic Symbols. You don’t need to install anything for this, although it’s not the most efficient way to enter symbols since you need to click for each one.
(While doing that I noticed that I can also go to Insert -> Special Character -> By Radical and see a list of Chinese characters sorted by radical, with English names for the radicals. Uh, awesome! Embroidery! Frog! Flute! Excuse me, I’ll be geeking out over this for the next 15 minutes.)