Without a doubt availability of Internet or WiFi has become a real necessity in terms of genuine facilities anywhere in the world. Nepal does have a lot of Internet connections spread all over its touristic centers like Kathmandu, Pokhara, Chitwan, Lumbani, Janakpur and many trekking trails so you shall easily get an access to the Internet while staying in Nepal. You can do almost anything you need to on the internet as Nepal has many trekking routes with continued internet connections outside major city area also. These days even in the Everest Base Camp, Annapurna Base Camp, Upper Mustang and other major trekking trails there is wifi so you might use it when you are there. But may not be always working since in the high Himalayas the connection gets sometimes to slow or even not connected. And there is possible to get internet access by sim card on your cell phone from different company.