Occasionally for some of the harder languages to learn online, I try to go back and do some more site searching. It can be an exhausting task at times. Many sites are just dead ends to error messages or really aren’t worth visiting, but here is one for the Somali language I think will work great if you are interested! They have a list of some 600 English to Somali words which should put anyone off to an awesome start. I believe the site was started to help Somali speakers learn English, but really it should help anyone.
Since Somali isn’t spoken by a large population learning the language online for free will be a difficult task to accomplish. Start with this Fortunecity site. They offer a 600 word English to Somali dictionary and vice versa. You maybe able to find an exchange partner online at My Language Exchange, provided there are Somali speakers registered with the site. Your best bet would be travel within the country, finding a local tutor or purchasing language software from African Language dot com. Their CD-ROM is priced at $99 USD, so may wish to shop around before buying.
Past Somali words: maxaad shektay, qaalin, khapar, aabbe