5. The method of claim 4 , wherein the creating of the at least one new annotations comprises: receiving, from the user associated with the electronic device, input highlighting a text block of interest; recording, by the electronic device as part of the new annotation, verification information associated with the highlighted text block, including text offsets and a hash mask of the highlighted text block; receiving, from the user associated with the electronic device, input providing supplementary information associated with the highlighted text block, the supplementary information including notes and addresses of cross-referenced webpages; and recording, by the electronic device as part of the new annotation, the supplementary information associated with the highlighted text block.
4. The method of claim 1 further comprising: receiving, from the user associated with the electronic device, input creating at least one new annotation on the received current instance of the webpage in addition to the one or more annotations included in the received annotations collection; and transmitting, by the electronic device to the annotations repository system, the annotations collection with the at least one new annotation for updating the stored instance of the annotations collection.