General and Administrative
General and administrative expenses for the three months ended June 30, 2020 decreased by $0.9 million, or 12%, to $7.2 million, as compared to $8.1 million in the same period in 2019. The decrease was primarily driven by a decrease of $0.2 million in legal fees, $0.2 million in depreciation expense, $0.2 million in board fees, $0.2 million in personnel and related costs, and $0.2 million in travel and entertainment costs, partially offset by an increase of $0.3 million in facilities costs.
General and administrative expenses for the six months ended June 30, 2020 decreased by $1.4 million, or 8%, to $15.3 million, as compared to $16.7 million in the same period in 2019. The decrease was primarily driven by decreases of $0.8 million associated with a potential proxy contest in 2019, $0.5 million in depreciation expense, $0.3 million in other legal fees, $0.3 million in consulting services, $0.3 million in travel and entertainment costs, $0.3 million in board fees, and $0.2 million in personnel and related costs, partially offset by increases of $0.8 million associated with strategic review costs, including fees of legal, financial and other advisors, and $0.6 million in facilities costs.
Amortization of Intangible Assets
Amortization expense for the three months ended June 30, 2020 decreased by $0.2 million, or 25%, to $0.7 million, as compared to $0.9 million in the same period in 2019. The decrease in amortization expense is primarily due to intangible assets completing their useful life.
Amortization expense for the six months ended June 30, 2020 decreased by $0.4 million, or 23%, to $1.4 million, as compared to $1.8 million in the same period in 2019. The decrease in amortization expense is primarily due to intangible assets completing their useful life.
Interest Income (Expense), Net
Interest expense for the three months ended June 30, 2020 was less than $0.1 million, as compared to interest income of $0.1 million in the same period in 2019.
Interest expense for the six months ended June 30, 2020 was $0.2 million, as compared to interest income of $0.2 million in the same period in 2019.
Other Income, Net
Other income for the three and six months ended June 30, 2020 was $3.8 million, as compared to other expense of less than $0.1 million in the same period in 2019. The increase in other income is attributable to a $3.8 million gain on the Hearst Transaction.
Income Tax Expense
Income tax expense for the three and six months ended June 30, 2020 and 2019 was less than $0.1 million.
Segment Results
Marketplaces Operating Expenses and Operating Contribution
Marketplaces operating expenses for the three months ended June 30, 2020 increased by $14.5 million, or 70%, to $35.0 million, as compared to $20.5 million in the same period in 2019. The increase was primarily due to an increase in marketplace revenue, with an increase of $14.1 million in cost of products and $1.0 million in marketing costs, partially offset by a decrease of $0.7 million in personnel and related costs. Marketplaces operating contribution was $3.7 million for the three months ended June 30, 2020, as compared to ($1.3) million in the same period in 2019.
Marketplaces operating expenses for the six months ended June 30, 2020 increased by $12.8 million, or 30%, to $55.5 million, as compared to $42.7 million in the same period in 2019. The increase was primarily due to increases in marketplace revenue, with increases of $12.4 million in cost of products and $1.2 million in marketing costs, partially offset by decreases of $0.9 million in personnel and related