En respuesta a esta pregunta, podemos decir que para la generación de leads son indispensables las dos, ya que una se complementa con la otra. De nada nos sirve tener una cantidad altísima de datos de usuarios si la mayoría de los mismos no son contactos de calidad, es decir, no son contactos interesados (aunque sea en un futuro) en nuestro productos o servicios, y por tanto, difícilmente terminarán comprándonos (que recordamos es nuestro objetivo final).

Normalmente el precio de un contrato llave en mano es una cantidad fija. No obstante, es habitual expresar los precios en un contrato llave en mano en forma de precios unitarios o reembolso de los gastos. Sin embargo, no es infrecuente que los contratos llave en mano a tanto alzado contengan una lista de precios unitarios o precios de algunas partes o componentes de las obras. Tales precios unitarios y parciales sirven para la valoración de las variaciones en los trabajos realizados y también para los pagos parciales.
El objetivo de la generación de leads no es simplemente obtener un cliente potencial en forma de registro de datos, como en un sorteo. El objetivo real es conseguir un nuevo cliente que esté interesado en el producto X o en el servicio Y, y que esté "listo para la venta". Se trata de un lead cualificado (qualified lead), que muy probablemente se convertirá en un nuevo cliente porque tiene una motivación específica y no quiere ganar nada.
Además suele utilizarse esta expresión para aquellos servicios que ofrecen un seguimiento exhaustivo del proceso/gestión realizada. Por ejemplo, en el ámbito de la promoción, la publicidad y los eventos, se llama sistema de llave en mano al servicio ofrecido por las agencias mediante el cual desde que el cliente contrata a la agencia hasta que el evento finaliza, todo corre por cuenta de la agencia. Este concepto también es aplicable a la ingeniería de software, para referirse a los desarrolladores de logicales que también toman a su cargo las adaptaciones a necesidades particulares del cliente, así como los cursos de formación del personal, etc.
Marketing emails need to be personalized to the reader and filled with interesting graphics. Few people want to read emails that are addressed "Dear Sir/Madam" -- as opposed to their first or last name -- and even fewer people want to read an email that simply gives them a wall of text. Visuals help your recipients quickly understand what the point of the email is.

Make sales on autopilot. Creating a sales funnel out of an email autoresponder sequence is a widely adopted strategy used by information marketers, but it can also be used by software companies, eCommerce businesses, and service providers. For example, it could consist of a series of educational videos, a sales video, and follow-ups to sell your information products. Or, you could create a sequence of free educational emails, and then invite leads to a live or recorded webinar where you make an offer. For eCommerce businesses, your sales sequence could include promo offers for products your subscriber has just viewed on your website.

Some merchants run their own (in-house) affiliate programs using dedicated software, while others use third-party intermediaries to track traffic or sales that are referred from affiliates. There are two different types of affiliate management methods used by merchants: standalone software or hosted services, typically called affiliate networks. Payouts to affiliates or publishers can be made by the networks on behalf of the merchant, by the network, consolidated across all merchants where the publisher has a relationship with and earned commissions or directly by the merchant itself.
File-Sharing: Web sites that host directories of music, movies, games and other software. Users upload content to file-hosting sites and then post descriptions of the material and their download links on directory sites. Uploaders are paid by the file-hosting sites based on the number of times their files are downloaded. The file-hosting sites sell premium download access to the files to the general public. The websites that host the directory services sell advertising and do not host the files themselves.

Emails triggered by milestones, like anniversaries and birthdays, are fun to get -- who doesn't like to celebrate a special occasion? The beauty of anniversary emails, in particular, is that they don't require subscribers to input any extra data, and they can work for a variety of senders. Plus, the timeframe can be modified based on the business model.
A quick and inexpensive method of making money without the hassle of actually selling a product, affiliate marketing has an undeniable draw for those looking to increase their income online. But how does an affiliate get paid after linking the seller to the consumer? The answer is complicated. The consumer doesn’t always need to buy the product for the affiliate to get a kickback. Depending on the program, the affiliate’s contribution to the seller’s sales will be measured differently. The affiliate may get paid in various ways:
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