Aggregating electronic content items from different sources

A non-transitory computer-readable medium embodying program code executable by a processing device, the non-transitory computer-readable medium comprising:

• program code for determining that a first electronic content item and a second electronic content item are relevant to one another, wherein the first electronic content item is provided by a first client account and the second electronic content item is provided by a second client account, wherein determining a relevance of the first electronic content item to the second electronic content item comprises:
• determining that an attribute of the first electronic content item is shared by content in a collection of electronic content and that an attribute of the second electronic content item is shared by content in the collection of electronic content,
• receiving input associated with the second client account and representing an interaction with the first electronic content item provided by the first client account, wherein the first electronic content item is included in a collection of electronic content,
• selecting the second electronic content item for comparison with the first electronic content item based on receiving the input representing the interaction with the first electronic content item, and
• determining, from first metadata of the first electronic content item and second metadata of the second electronic content item and based on selecting the second electronic content item, that a common geographic location and a common time period are depicted or described in both the first electronic content item and the second electronic content item;
• program code for aggregating the first electronic content item and the second electronic content item to form at least part of the collection of electronic content based on determining that the first electronic content item and the second electronic content item are relevant to one another;
• and
• program code for providing access to the collection of electronic content.

A system comprising:

• a processor;
• and
• a non-transitory computer-readable medium communicatively included in or communicatively coupled to the processor,
• wherein the processor is configured to execute instructions stored in non-transitory computer-readable medium and thereby perform operations comprising:
• determining that a first electronic content item and a second electronic content item are relevant to one another, wherein the first electronic content item is provided by a first client account and the second electronic content item is provided by a second client account, wherein determining a relevance of the first electronic content item to the second electronic content item comprises:
• determining that an attribute of the first electronic content item is shared by content in a collection of electronic content and that an attribute of the second electronic content item is shared by content in the collection of electronic content,
• receiving input associated with the second client account and representing an interaction with the first electronic content item provided by the first client account, wherein the first electronic content item is included in a collection of electronic content,
• selecting the second electronic content item for comparison with the first electronic content item based on receiving the input representing the interaction with the first electronic content item, and
• determining, from first metadata of the first electronic content item and second metadata of the second electronic content item and based on selecting the second electronic content item, that a common geographic location and a common time period are depicted or described in both the first electronic content item and the second electronic content item;
• aggregating the first electronic content item and the second electronic content item to form at least part of the collection of electronic content based on determining that the first electronic content item and the second electronic content item are relevant to one another;
• and
• providing access to the collection of electronic content.