The leader of the Better Together campaign, Alistair Darling, has called the result a "momentous result for Scotland and also the United Kingdom as a whole".
He said that it "reaffirmed all that we have in common and the bonds that tie us together - let them never be broken".
But he said the surge in support for independence showed great dissatisfaction and that "every politician must now listen to their cry for change".
The woman expected to replace Salmond said she will "follow the mood of the people" if promises made in the run up to the vote are not met.
The double Grand Slam winner said he did not regret giving his opinion, but was 'disappointed' at the way he went about it.
Alex Salmond has announced his intention to end a 24-year career at the forefront of Scottish politics. Here is a brief look at his career.