15. Apparatus for accessing electronic documents, the apparatus comprising: a server computer storing a plurality of electronic documents; a plurality of client computers that can view the plurality of electronic documents stored on the host server and can copy text from the plurality of electronic documents; and an annotation service, wherein the annotation service generates a first annotation from a selected portion of text within a first electronic document by: analyzing an unselected portion of text that precedes the selected portion of text within the first electronic document; and identifying a part of the unselected portion of text to replace a part of the selected portion of text; and wherein the annotation service makes the first annotation available to a first client computer in the plurality of client computers when the first client computer copies the selected portion of text, and wherein the first annotation is used to generate a modified selected portion of text that is pasted into a second electronic document different from the first electronic document.
15. Apparatus for accessing electronic documents, the apparatus comprising: a server computer storing a plurality of electronic documents; a plurality of client computers that can view the plurality of electronic documents stored on the host server and can copy text from the plurality of electronic documents; and an annotation service, wherein the annotation service generates a first annotation from a selected portion of text within a first electronic document by: analyzing an unselected portion of text that precedes the selected portion of text within the first electronic document; and identifying a part of the unselected portion of text to replace a part of the selected portion of text; and wherein the annotation service makes the first annotation available to a first client computer in the plurality of client computers when the first client computer copies the selected portion of text, and wherein the first annotation is used to generate a modified selected portion of text that is pasted into a second electronic document different from the first electronic document. 17. The apparatus of claim 15 , wherein the first client computer comprises the annotation service.