According to the Russian Primary Chronicle (ca. 1040-1118 AD), the Rus were a group of "Varangians," possibly of Swedish origin, who had a leader named Rurik. Rus appears to be derived from the Finnish word for Sweden, *Rotsi, later Ruotsi, which in turn comes from Old Swedish rother, a word associated with rowing or ships, so that rothskarlar meant "rowers" or "seamen."
"6370 (862 BC) ...Discord thus ensued among them, and they began to war one against another. They said to themselves, 'Let us seek a prince who may rule over us, and judge us according to the law.' They accordingly went overseas to the Varangian Rus: these particular Varangians were known as Rus, just as some are called Swedes, and others Normans, Angles, and Goths, for they were thus named. The Chuds, the Slavs, and the Krivichians then said to the people of Rus: 'Our whole land is great and rich, but there is nor order in it. Come to rule and reign over us.' They thus selected three brothers, with their kinfolk, who took with them all the Rus, and migrated. The oldest, Rurik, located himself in Novgorod; the second, Sinaeus, in Beloozero; and the third, Truvor, in Izborsk. On account of these Varangians, the district of Novgorod became known as Russian (Rus) land. The present inhabitants of Novgorod are descended from the Varangian race, but aforetime they were Slavs." (Russian Primary Chronicle)
The Vikings settled coastal areas along the Baltic Sea, and along inland rivers in Russian territories such as Staraya Ladoga, Novgorod and along major waterways to the Byzantine empire.
The Varangians or Varyags (Russian, Ukrainian: Варяги, Varyagi) sometimes referred to as Variagians were Scandinavians who migrated eastwards and southwards through what is now Russia, Belarus and Ukraine mainly in the 9th and 10th centuries. Engaging in trade, piracy and mercenary activities, they roamed the river systems and portages of Gardariki, reaching the Caspian Sea and Constantinople.
But.....I think we're slighty off topic here...